Add ~ to indicate approximate time

42 files changed, 206 insertions, 206 deletions

diff --git a/2020/schedule/00.md b/2020/schedule/00.md
index 8e493277..09499b01 100644
--- a/2020/schedule/00.md
+++ b/2020/schedule/00.md
@@ -9,11 +9,11 @@ Next: <a href="/2020/schedule/01">Emacs News Highlights</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  9:00 AM -  9:30 AM EST  
-Saturday, Nov 28 2020,  6:00 AM -  6:30 AM PST  
-Saturday, Nov 28 2020,  2:00 PM -  2:30 PM UTC  
-Saturday, Nov 28 2020,  3:00 PM -  3:30 PM CET  
-Saturday, Nov 28 2020, 10:00 PM - 10:30 PM +08
+Saturday, Nov 28 2020, ~ 9:00 AM -  9:30 AM EST  
+Saturday, Nov 28 2020, ~ 6:00 AM -  6:30 AM PST  
+Saturday, Nov 28 2020, ~ 2:00 PM -  2:30 PM UTC  
+Saturday, Nov 28 2020, ~ 3:00 PM -  3:30 PM CET  
+Saturday, Nov 28 2020, ~10:00 PM - 10:30 PM +08
 
 [[!inline pages="internal(2020/info/00)" raw="yes"]]
 
diff --git a/2020/schedule/01.md b/2020/schedule/01.md
index 47ec8ba1..8f25d7d1 100644
--- a/2020/schedule/01.md
+++ b/2020/schedule/01.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/02">An Emacs Developer Story: From User to Package
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  9:33 AM -  9:37 AM EST  
-Saturday, Nov 28 2020,  6:33 AM -  6:37 AM PST  
-Saturday, Nov 28 2020,  2:33 PM -  2:37 PM UTC  
-Saturday, Nov 28 2020,  3:33 PM -  3:37 PM CET  
-Saturday, Nov 28 2020, 10:33 PM - 10:37 PM +08
+Saturday, Nov 28 2020, ~ 9:33 AM -  9:37 AM EST  
+Saturday, Nov 28 2020, ~ 6:33 AM -  6:37 AM PST  
+Saturday, Nov 28 2020, ~ 2:33 PM -  2:37 PM UTC  
+Saturday, Nov 28 2020, ~ 3:33 PM -  3:37 PM CET  
+Saturday, Nov 28 2020, ~10:33 PM - 10:37 PM +08
 
 [[!inline pages="internal(2020/info/01)" raw="yes"]]
 
diff --git a/2020/schedule/02.md b/2020/schedule/02.md
index 69972d61..1b1b0238 100644
--- a/2020/schedule/02.md
+++ b/2020/schedule/02.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/03">Idea to Novel Superstructure: Emacs for Writin
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  9:40 AM - 10:00 AM EST  
-Saturday, Nov 28 2020,  6:40 AM -  7:00 AM PST  
-Saturday, Nov 28 2020,  2:40 PM -  3:00 PM UTC  
-Saturday, Nov 28 2020,  3:40 PM -  4:00 PM CET  
-Saturday, Nov 28 2020, 10:40 PM - 11:00 PM +08
+Saturday, Nov 28 2020, ~ 9:40 AM - 10:00 AM EST  
+Saturday, Nov 28 2020, ~ 6:40 AM -  7:00 AM PST  
+Saturday, Nov 28 2020, ~ 2:40 PM -  3:00 PM UTC  
+Saturday, Nov 28 2020, ~ 3:40 PM -  4:00 PM CET  
+Saturday, Nov 28 2020, ~10:40 PM - 11:00 PM +08
 
 [[!inline pages="internal(2020/info/02)" raw="yes"]]
 
diff --git a/2020/schedule/03.md b/2020/schedule/03.md
index 0c174d5f..7af59e97 100644
--- a/2020/schedule/03.md
+++ b/2020/schedule/03.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/04">Music in Plain Text</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 10:03 AM - 10:13 AM EST  
-Saturday, Nov 28 2020,  7:03 AM -  7:13 AM PST  
-Saturday, Nov 28 2020,  3:03 PM -  3:13 PM UTC  
-Saturday, Nov 28 2020,  4:03 PM -  4:13 PM CET  
-Saturday, Nov 28 2020, 11:03 PM - 11:13 PM +08
+Saturday, Nov 28 2020, ~10:03 AM - 10:13 AM EST  
+Saturday, Nov 28 2020, ~ 7:03 AM -  7:13 AM PST  
+Saturday, Nov 28 2020, ~ 3:03 PM -  3:13 PM UTC  
+Saturday, Nov 28 2020, ~ 4:03 PM -  4:13 PM CET  
+Saturday, Nov 28 2020, ~11:03 PM - 11:13 PM +08
 
 [[!inline pages="internal(2020/info/03)" raw="yes"]]
 
diff --git a/2020/schedule/04.md b/2020/schedule/04.md
index 7e57e76b..ee401040 100644
--- a/2020/schedule/04.md
+++ b/2020/schedule/04.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/05">Bard Bivou(m)acs - Building a bandcamp-like pa
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 10:16 AM - 10:26 AM EST  
-Saturday, Nov 28 2020,  7:16 AM -  7:26 AM PST  
-Saturday, Nov 28 2020,  3:16 PM -  3:26 PM UTC  
-Saturday, Nov 28 2020,  4:16 PM -  4:26 PM CET  
-Saturday, Nov 28 2020, 11:16 PM - 11:26 PM +08
+Saturday, Nov 28 2020, ~10:16 AM - 10:26 AM EST  
+Saturday, Nov 28 2020, ~ 7:16 AM -  7:26 AM PST  
+Saturday, Nov 28 2020, ~ 3:16 PM -  3:26 PM UTC  
+Saturday, Nov 28 2020, ~ 4:16 PM -  4:26 PM CET  
+Saturday, Nov 28 2020, ~11:16 PM - 11:26 PM +08
 
 [[!inline pages="internal(2020/info/04)" raw="yes"]]
 
diff --git a/2020/schedule/05.md b/2020/schedule/05.md
index ed4696da..7536dc4c 100644
--- a/2020/schedule/05.md
+++ b/2020/schedule/05.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/06">Trivial Emacs Kits</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 10:29 AM - 10:45 AM EST  
-Saturday, Nov 28 2020,  7:29 AM -  7:45 AM PST  
-Saturday, Nov 28 2020,  3:29 PM -  3:45 PM UTC  
-Saturday, Nov 28 2020,  4:29 PM -  4:45 PM CET  
-Saturday, Nov 28 2020, 11:29 PM - 11:45 PM +08
+Saturday, Nov 28 2020, ~10:29 AM - 10:45 AM EST  
+Saturday, Nov 28 2020, ~ 7:29 AM -  7:45 AM PST  
+Saturday, Nov 28 2020, ~ 3:29 PM -  3:45 PM UTC  
+Saturday, Nov 28 2020, ~ 4:29 PM -  4:45 PM CET  
+Saturday, Nov 28 2020, ~11:29 PM - 11:45 PM +08
 
 [[!inline pages="internal(2020/info/05)" raw="yes"]]
 
diff --git a/2020/schedule/06.md b/2020/schedule/06.md
index 8a5fa2a3..1481af25 100644
--- a/2020/schedule/06.md
+++ b/2020/schedule/06.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/07">Beyond Vim and Emacs: A Scalable UI Paradigm</
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 10:48 AM - 10:58 AM EST  
-Saturday, Nov 28 2020,  7:48 AM -  7:58 AM PST  
-Saturday, Nov 28 2020,  3:48 PM -  3:58 PM UTC  
-Saturday, Nov 28 2020,  4:48 PM -  4:58 PM CET  
-Saturday, Nov 28 2020, 11:48 PM - 11:58 PM +08
+Saturday, Nov 28 2020, ~10:48 AM - 10:58 AM EST  
+Saturday, Nov 28 2020, ~ 7:48 AM -  7:58 AM PST  
+Saturday, Nov 28 2020, ~ 3:48 PM -  3:58 PM UTC  
+Saturday, Nov 28 2020, ~ 4:48 PM -  4:58 PM CET  
+Saturday, Nov 28 2020, ~11:48 PM - 11:58 PM +08
 
 [[!inline pages="internal(2020/info/06)" raw="yes"]]
 
diff --git a/2020/schedule/07.md b/2020/schedule/07.md
index 0681b679..a888a316 100644
--- a/2020/schedule/07.md
+++ b/2020/schedule/07.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/08">Building reproducible Emacs</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 11:01 AM - 11:21 AM EST  
-Saturday, Nov 28 2020,  8:01 AM -  8:21 AM PST  
-Saturday, Nov 28 2020,  4:01 PM -  4:21 PM UTC  
-Saturday, Nov 28 2020,  5:01 PM -  5:21 PM CET  
-Sunday, Nov 29 2020, 12:01 AM - 12:21 AM +08
+Saturday, Nov 28 2020, ~11:01 AM - 11:21 AM EST  
+Saturday, Nov 28 2020, ~ 8:01 AM -  8:21 AM PST  
+Saturday, Nov 28 2020, ~ 4:01 PM -  4:21 PM UTC  
+Saturday, Nov 28 2020, ~ 5:01 PM -  5:21 PM CET  
+Sunday, Nov 29 2020, ~12:01 AM - 12:21 AM +08
 
 [[!inline pages="internal(2020/info/07)" raw="yes"]]
 
diff --git a/2020/schedule/08.md b/2020/schedule/08.md
index 51f975f0..35a49497 100644
--- a/2020/schedule/08.md
+++ b/2020/schedule/08.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/21">On why most of the best features in eev look l
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 11:24 AM - 11:44 AM EST  
-Saturday, Nov 28 2020,  8:24 AM -  8:44 AM PST  
-Saturday, Nov 28 2020,  4:24 PM -  4:44 PM UTC  
-Saturday, Nov 28 2020,  5:24 PM -  5:44 PM CET  
-Sunday, Nov 29 2020, 12:24 AM - 12:44 AM +08
+Saturday, Nov 28 2020, ~11:24 AM - 11:44 AM EST  
+Saturday, Nov 28 2020, ~ 8:24 AM -  8:44 AM PST  
+Saturday, Nov 28 2020, ~ 4:24 PM -  4:44 PM UTC  
+Saturday, Nov 28 2020, ~ 5:24 PM -  5:44 PM CET  
+Sunday, Nov 29 2020, ~12:24 AM - 12:44 AM +08
 
 [[!inline pages="internal(2020/info/08)" raw="yes"]]
 
diff --git a/2020/schedule/09.md b/2020/schedule/09.md
index 4f628910..72abaace 100644
--- a/2020/schedule/09.md
+++ b/2020/schedule/09.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/10">Lead your future with Org</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  1:03 PM -  1:13 PM EST  
-Saturday, Nov 28 2020, 10:03 AM - 10:13 AM PST  
-Saturday, Nov 28 2020,  6:03 PM -  6:13 PM UTC  
-Saturday, Nov 28 2020,  7:03 PM -  7:13 PM CET  
-Sunday, Nov 29 2020,  2:03 AM -  2:13 AM +08
+Saturday, Nov 28 2020, ~ 1:03 PM -  1:13 PM EST  
+Saturday, Nov 28 2020, ~10:03 AM - 10:13 AM PST  
+Saturday, Nov 28 2020, ~ 6:03 PM -  6:13 PM UTC  
+Saturday, Nov 28 2020, ~ 7:03 PM -  7:13 PM CET  
+Sunday, Nov 29 2020, ~ 2:03 AM -  2:13 AM +08
 
 [[!inline pages="internal(2020/info/09)" raw="yes"]]
 
diff --git a/2020/schedule/10.md b/2020/schedule/10.md
index 40643b0b..3b84520a 100644
--- a/2020/schedule/10.md
+++ b/2020/schedule/10.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/11">the org-gtd package: opinions about Getting Th
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  1:16 PM -  1:26 PM EST  
-Saturday, Nov 28 2020, 10:16 AM - 10:26 AM PST  
-Saturday, Nov 28 2020,  6:16 PM -  6:26 PM UTC  
-Saturday, Nov 28 2020,  7:16 PM -  7:26 PM CET  
-Sunday, Nov 29 2020,  2:16 AM -  2:26 AM +08
+Saturday, Nov 28 2020, ~ 1:16 PM -  1:26 PM EST  
+Saturday, Nov 28 2020, ~10:16 AM - 10:26 AM PST  
+Saturday, Nov 28 2020, ~ 6:16 PM -  6:26 PM UTC  
+Saturday, Nov 28 2020, ~ 7:16 PM -  7:26 PM CET  
+Sunday, Nov 29 2020, ~ 2:16 AM -  2:26 AM +08
 
 [[!inline pages="internal(2020/info/10)" raw="yes"]]
 
diff --git a/2020/schedule/11.md b/2020/schedule/11.md
index 903b74b0..95c08494 100644
--- a/2020/schedule/11.md
+++ b/2020/schedule/11.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/12">One Big-ass Org File or multiple tiny ones?  F
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  1:29 PM -  1:49 PM EST  
-Saturday, Nov 28 2020, 10:29 AM - 10:49 AM PST  
-Saturday, Nov 28 2020,  6:29 PM -  6:49 PM UTC  
-Saturday, Nov 28 2020,  7:29 PM -  7:49 PM CET  
-Sunday, Nov 29 2020,  2:29 AM -  2:49 AM +08
+Saturday, Nov 28 2020, ~ 1:29 PM -  1:49 PM EST  
+Saturday, Nov 28 2020, ~10:29 AM - 10:49 AM PST  
+Saturday, Nov 28 2020, ~ 6:29 PM -  6:49 PM UTC  
+Saturday, Nov 28 2020, ~ 7:29 PM -  7:49 PM CET  
+Sunday, Nov 29 2020, ~ 2:29 AM -  2:49 AM +08
 
 [[!inline pages="internal(2020/info/11)" raw="yes"]]
 
diff --git a/2020/schedule/12.md b/2020/schedule/12.md
index b46c81ae..4675b3de 100644
--- a/2020/schedule/12.md
+++ b/2020/schedule/12.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/13">Experience Report: Steps to "Emacs Hyper Noteb
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  1:52 PM -  2:02 PM EST  
-Saturday, Nov 28 2020, 10:52 AM - 11:02 AM PST  
-Saturday, Nov 28 2020,  6:52 PM -  7:02 PM UTC  
-Saturday, Nov 28 2020,  7:52 PM -  8:02 PM CET  
-Sunday, Nov 29 2020,  2:52 AM -  3:02 AM +08
+Saturday, Nov 28 2020, ~ 1:52 PM -  2:02 PM EST  
+Saturday, Nov 28 2020, ~10:52 AM - 11:02 AM PST  
+Saturday, Nov 28 2020, ~ 6:52 PM -  7:02 PM UTC  
+Saturday, Nov 28 2020, ~ 7:52 PM -  8:02 PM CET  
+Sunday, Nov 29 2020, ~ 2:52 AM -  3:02 AM +08
 
 [[!inline pages="internal(2020/info/12)" raw="yes"]]
 
diff --git a/2020/schedule/13.md b/2020/schedule/13.md
index 98c4d335..5611ebec 100644
--- a/2020/schedule/13.md
+++ b/2020/schedule/13.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/14">README-Driven Design</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  2:05 PM -  2:15 PM EST  
-Saturday, Nov 28 2020, 11:05 AM - 11:15 AM PST  
-Saturday, Nov 28 2020,  7:05 PM -  7:15 PM UTC  
-Saturday, Nov 28 2020,  8:05 PM -  8:15 PM CET  
-Sunday, Nov 29 2020,  3:05 AM -  3:15 AM +08
+Saturday, Nov 28 2020, ~ 2:05 PM -  2:15 PM EST  
+Saturday, Nov 28 2020, ~11:05 AM - 11:15 AM PST  
+Saturday, Nov 28 2020, ~ 7:05 PM -  7:15 PM UTC  
+Saturday, Nov 28 2020, ~ 8:05 PM -  8:15 PM CET  
+Sunday, Nov 29 2020, ~ 3:05 AM -  3:15 AM +08
 
 [[!inline pages="internal(2020/info/13)" raw="yes"]]
 
diff --git a/2020/schedule/14.md b/2020/schedule/14.md
index 482bd0fb..2f602bca 100644
--- a/2020/schedule/14.md
+++ b/2020/schedule/14.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/15">Moving from Jekyll to OrgMode, an experience r
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  2:18 PM -  2:38 PM EST  
-Saturday, Nov 28 2020, 11:18 AM - 11:38 AM PST  
-Saturday, Nov 28 2020,  7:18 PM -  7:38 PM UTC  
-Saturday, Nov 28 2020,  8:18 PM -  8:38 PM CET  
-Sunday, Nov 29 2020,  3:18 AM -  3:38 AM +08
+Saturday, Nov 28 2020, ~ 2:18 PM -  2:38 PM EST  
+Saturday, Nov 28 2020, ~11:18 AM - 11:38 AM PST  
+Saturday, Nov 28 2020, ~ 7:18 PM -  7:38 PM UTC  
+Saturday, Nov 28 2020, ~ 8:18 PM -  8:38 PM CET  
+Sunday, Nov 29 2020, ~ 3:18 AM -  3:38 AM +08
 
 [[!inline pages="internal(2020/info/14)" raw="yes"]]
 
diff --git a/2020/schedule/15.md b/2020/schedule/15.md
index 255bff14..0f9d9398 100644
--- a/2020/schedule/15.md
+++ b/2020/schedule/15.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/16">Org-roam: Presentation, Demonstration, and Wha
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  2:41 PM -  2:51 PM EST  
-Saturday, Nov 28 2020, 11:41 AM - 11:51 AM PST  
-Saturday, Nov 28 2020,  7:41 PM -  7:51 PM UTC  
-Saturday, Nov 28 2020,  8:41 PM -  8:51 PM CET  
-Sunday, Nov 29 2020,  3:41 AM -  3:51 AM +08
+Saturday, Nov 28 2020, ~ 2:41 PM -  2:51 PM EST  
+Saturday, Nov 28 2020, ~11:41 AM - 11:51 AM PST  
+Saturday, Nov 28 2020, ~ 7:41 PM -  7:51 PM UTC  
+Saturday, Nov 28 2020, ~ 8:41 PM -  8:51 PM CET  
+Sunday, Nov 29 2020, ~ 3:41 AM -  3:51 AM +08
 
 [[!inline pages="internal(2020/info/15)" raw="yes"]]
 
diff --git a/2020/schedule/16.md b/2020/schedule/16.md
index 4c7ab032..94bfbba0 100644
--- a/2020/schedule/16.md
+++ b/2020/schedule/16.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/17">Org-mode and Org-Roam for Scholars and Researc
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  2:54 PM -  3:14 PM EST  
-Saturday, Nov 28 2020, 11:54 AM - 12:14 PM PST  
-Saturday, Nov 28 2020,  7:54 PM -  8:14 PM UTC  
-Saturday, Nov 28 2020,  8:54 PM -  9:14 PM CET  
-Sunday, Nov 29 2020,  3:54 AM -  4:14 AM +08
+Saturday, Nov 28 2020, ~ 2:54 PM -  3:14 PM EST  
+Saturday, Nov 28 2020, ~11:54 AM - 12:14 PM PST  
+Saturday, Nov 28 2020, ~ 7:54 PM -  8:14 PM UTC  
+Saturday, Nov 28 2020, ~ 8:54 PM -  9:14 PM CET  
+Sunday, Nov 29 2020, ~ 3:54 AM -  4:14 AM +08
 
 [[!inline pages="internal(2020/info/16)" raw="yes"]]
 
diff --git a/2020/schedule/17.md b/2020/schedule/17.md
index 4fd79cef..50fe46ee 100644
--- a/2020/schedule/17.md
+++ b/2020/schedule/17.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/18">Org-roam: Technical Presentation</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  3:17 PM -  3:37 PM EST  
-Saturday, Nov 28 2020, 12:17 PM - 12:37 PM PST  
-Saturday, Nov 28 2020,  8:17 PM -  8:37 PM UTC  
-Saturday, Nov 28 2020,  9:17 PM -  9:37 PM CET  
-Sunday, Nov 29 2020,  4:17 AM -  4:37 AM +08
+Saturday, Nov 28 2020, ~ 3:17 PM -  3:37 PM EST  
+Saturday, Nov 28 2020, ~12:17 PM - 12:37 PM PST  
+Saturday, Nov 28 2020, ~ 8:17 PM -  8:37 PM UTC  
+Saturday, Nov 28 2020, ~ 9:17 PM -  9:37 PM CET  
+Sunday, Nov 29 2020, ~ 4:17 AM -  4:37 AM +08
 
 [[!inline pages="internal(2020/info/17)" raw="yes"]]
 
diff --git a/2020/schedule/18.md b/2020/schedule/18.md
index 8371c7bc..e4419709 100644
--- a/2020/schedule/18.md
+++ b/2020/schedule/18.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/19">Sharing blogs (and more) with org-webring</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  3:40 PM -  4:00 PM EST  
-Saturday, Nov 28 2020, 12:40 PM -  1:00 PM PST  
-Saturday, Nov 28 2020,  8:40 PM -  9:00 PM UTC  
-Saturday, Nov 28 2020,  9:40 PM - 10:00 PM CET  
-Sunday, Nov 29 2020,  4:40 AM -  5:00 AM +08
+Saturday, Nov 28 2020, ~ 3:40 PM -  4:00 PM EST  
+Saturday, Nov 28 2020, ~12:40 PM -  1:00 PM PST  
+Saturday, Nov 28 2020, ~ 8:40 PM -  9:00 PM UTC  
+Saturday, Nov 28 2020, ~ 9:40 PM - 10:00 PM CET  
+Sunday, Nov 29 2020, ~ 4:40 AM -  5:00 AM +08
 
 [[!inline pages="internal(2020/info/18)" raw="yes"]]
 
diff --git a/2020/schedule/19.md b/2020/schedule/19.md
index 2967accc..af256e83 100644
--- a/2020/schedule/19.md
+++ b/2020/schedule/19.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/20">OMG Macros</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  4:03 PM -  4:13 PM EST  
-Saturday, Nov 28 2020,  1:03 PM -  1:13 PM PST  
-Saturday, Nov 28 2020,  9:03 PM -  9:13 PM UTC  
-Saturday, Nov 28 2020, 10:03 PM - 10:13 PM CET  
-Sunday, Nov 29 2020,  5:03 AM -  5:13 AM +08
+Saturday, Nov 28 2020, ~ 4:03 PM -  4:13 PM EST  
+Saturday, Nov 28 2020, ~ 1:03 PM -  1:13 PM PST  
+Saturday, Nov 28 2020, ~ 9:03 PM -  9:13 PM UTC  
+Saturday, Nov 28 2020, ~10:03 PM - 10:13 PM CET  
+Sunday, Nov 29 2020, ~ 5:03 AM -  5:13 AM +08
 
 [[!inline pages="internal(2020/info/19)" raw="yes"]]
 
diff --git a/2020/schedule/20.md b/2020/schedule/20.md
index 1c1301e4..48c9178d 100644
--- a/2020/schedule/20.md
+++ b/2020/schedule/20.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/40">16:30 - 17:00 Closing remarks</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  4:16 PM -  4:36 PM EST  
-Saturday, Nov 28 2020,  1:16 PM -  1:36 PM PST  
-Saturday, Nov 28 2020,  9:16 PM -  9:36 PM UTC  
-Saturday, Nov 28 2020, 10:16 PM - 10:36 PM CET  
-Sunday, Nov 29 2020,  5:16 AM -  5:36 AM +08
+Saturday, Nov 28 2020, ~ 4:16 PM -  4:36 PM EST  
+Saturday, Nov 28 2020, ~ 1:16 PM -  1:36 PM PST  
+Saturday, Nov 28 2020, ~ 9:16 PM -  9:36 PM UTC  
+Saturday, Nov 28 2020, ~10:16 PM - 10:36 PM CET  
+Sunday, Nov 29 2020, ~ 5:16 AM -  5:36 AM +08
 
 [[!inline pages="internal(2020/info/20)" raw="yes"]]
 
diff --git a/2020/schedule/21.md b/2020/schedule/21.md
index 23761e44..5d1cd309 100644
--- a/2020/schedule/21.md
+++ b/2020/schedule/21.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/09">Orgmode - your life in plain text</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020, 11:47 AM - 12:27 PM EST  
-Saturday, Nov 28 2020,  8:47 AM -  9:27 AM PST  
-Saturday, Nov 28 2020,  4:47 PM -  5:27 PM UTC  
-Saturday, Nov 28 2020,  5:47 PM -  6:27 PM CET  
-Sunday, Nov 29 2020, 12:47 AM -  1:27 AM +08
+Saturday, Nov 28 2020, ~11:47 AM - 12:27 PM EST  
+Saturday, Nov 28 2020, ~ 8:47 AM -  9:27 AM PST  
+Saturday, Nov 28 2020, ~ 4:47 PM -  5:27 PM UTC  
+Saturday, Nov 28 2020, ~ 5:47 PM -  6:27 PM CET  
+Sunday, Nov 29 2020, ~12:47 AM -  1:27 AM +08
 
 [[!inline pages="internal(2020/info/21)" raw="yes"]]
 
diff --git a/2020/schedule/22.md b/2020/schedule/22.md
index 7644e172..d21dc8ba 100644
--- a/2020/schedule/22.md
+++ b/2020/schedule/22.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/23">Incremental Parsing with emacs-tree-sitter</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  9:33 AM -  9:53 AM EST  
-Sunday, Nov 29 2020,  6:33 AM -  6:53 AM PST  
-Sunday, Nov 29 2020,  2:33 PM -  2:53 PM UTC  
-Sunday, Nov 29 2020,  3:33 PM -  3:53 PM CET  
-Sunday, Nov 29 2020, 10:33 PM - 10:53 PM +08
+Sunday, Nov 29 2020, ~ 9:33 AM -  9:53 AM EST  
+Sunday, Nov 29 2020, ~ 6:33 AM -  6:53 AM PST  
+Sunday, Nov 29 2020, ~ 2:33 PM -  2:53 PM UTC  
+Sunday, Nov 29 2020, ~ 3:33 PM -  3:53 PM CET  
+Sunday, Nov 29 2020, ~10:33 PM - 10:53 PM +08
 
 [[!inline pages="internal(2020/info/22)" raw="yes"]]
 
diff --git a/2020/schedule/23.md b/2020/schedule/23.md
index 01821ac2..94f77de0 100644
--- a/2020/schedule/23.md
+++ b/2020/schedule/23.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/24">Analyze code quality through Emacs: a smart fo
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  9:56 AM - 10:46 AM EST  
-Sunday, Nov 29 2020,  6:56 AM -  7:46 AM PST  
-Sunday, Nov 29 2020,  2:56 PM -  3:46 PM UTC  
-Sunday, Nov 29 2020,  3:56 PM -  4:46 PM CET  
-Sunday, Nov 29 2020, 10:56 PM - 11:46 PM +08
+Sunday, Nov 29 2020, ~ 9:56 AM - 10:46 AM EST  
+Sunday, Nov 29 2020, ~ 6:56 AM -  7:46 AM PST  
+Sunday, Nov 29 2020, ~ 2:56 PM -  3:46 PM UTC  
+Sunday, Nov 29 2020, ~ 3:56 PM -  4:46 PM CET  
+Sunday, Nov 29 2020, ~10:56 PM - 11:46 PM +08
 
 [[!inline pages="internal(2020/info/23)" raw="yes"]]
 
diff --git a/2020/schedule/24.md b/2020/schedule/24.md
index fbfc5fe6..094b0665 100644
--- a/2020/schedule/24.md
+++ b/2020/schedule/24.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/25">Traverse complex JSON structures with live fee
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020, 10:49 AM - 11:09 AM EST  
-Sunday, Nov 29 2020,  7:49 AM -  8:09 AM PST  
-Sunday, Nov 29 2020,  3:49 PM -  4:09 PM UTC  
-Sunday, Nov 29 2020,  4:49 PM -  5:09 PM CET  
-Sunday, Nov 29 2020, 11:49 PM - 12:09 AM +08
+Sunday, Nov 29 2020, ~10:49 AM - 11:09 AM EST  
+Sunday, Nov 29 2020, ~ 7:49 AM -  8:09 AM PST  
+Sunday, Nov 29 2020, ~ 3:49 PM -  4:09 PM UTC  
+Sunday, Nov 29 2020, ~ 4:49 PM -  5:09 PM CET  
+Sunday, Nov 29 2020, ~11:49 PM - 12:09 AM +08
 
 [[!inline pages="internal(2020/info/24)" raw="yes"]]
 
diff --git a/2020/schedule/25.md b/2020/schedule/25.md
index 98af239f..3d1eaf4d 100644
--- a/2020/schedule/25.md
+++ b/2020/schedule/25.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/39">NonGNU ELPA</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020, 11:12 AM - 11:22 AM EST  
-Sunday, Nov 29 2020,  8:12 AM -  8:22 AM PST  
-Sunday, Nov 29 2020,  4:12 PM -  4:22 PM UTC  
-Sunday, Nov 29 2020,  5:12 PM -  5:22 PM CET  
-Monday, Nov 30 2020, 12:12 AM - 12:22 AM +08
+Sunday, Nov 29 2020, ~11:12 AM - 11:22 AM EST  
+Sunday, Nov 29 2020, ~ 8:12 AM -  8:22 AM PST  
+Sunday, Nov 29 2020, ~ 4:12 PM -  4:22 PM UTC  
+Sunday, Nov 29 2020, ~ 5:12 PM -  5:22 PM CET  
+Monday, Nov 30 2020, ~12:12 AM - 12:22 AM +08
 
 [[!inline pages="internal(2020/info/25)" raw="yes"]]
 
diff --git a/2020/schedule/26.md b/2020/schedule/26.md
index 4437ac88..4876310c 100644
--- a/2020/schedule/26.md
+++ b/2020/schedule/26.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/27">State of Retro Gaming in Emacs</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  1:03 PM -  1:13 PM EST  
-Sunday, Nov 29 2020, 10:03 AM - 10:13 AM PST  
-Sunday, Nov 29 2020,  6:03 PM -  6:13 PM UTC  
-Sunday, Nov 29 2020,  7:03 PM -  7:13 PM CET  
-Monday, Nov 30 2020,  2:03 AM -  2:13 AM +08
+Sunday, Nov 29 2020, ~ 1:03 PM -  1:13 PM EST  
+Sunday, Nov 29 2020, ~10:03 AM - 10:13 AM PST  
+Sunday, Nov 29 2020, ~ 6:03 PM -  6:13 PM UTC  
+Sunday, Nov 29 2020, ~ 7:03 PM -  7:13 PM CET  
+Monday, Nov 30 2020, ~ 2:03 AM -  2:13 AM +08
 
 [[!inline pages="internal(2020/info/26)" raw="yes"]]
 
diff --git a/2020/schedule/27.md b/2020/schedule/27.md
index d4fb994a..69c709ed 100644
--- a/2020/schedule/27.md
+++ b/2020/schedule/27.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/28">Welcome To The Dungeon</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  1:16 PM -  1:26 PM EST  
-Sunday, Nov 29 2020, 10:16 AM - 10:26 AM PST  
-Sunday, Nov 29 2020,  6:16 PM -  6:26 PM UTC  
-Sunday, Nov 29 2020,  7:16 PM -  7:26 PM CET  
-Monday, Nov 30 2020,  2:16 AM -  2:26 AM +08
+Sunday, Nov 29 2020, ~ 1:16 PM -  1:26 PM EST  
+Sunday, Nov 29 2020, ~10:16 AM - 10:26 AM PST  
+Sunday, Nov 29 2020, ~ 6:16 PM -  6:26 PM UTC  
+Sunday, Nov 29 2020, ~ 7:16 PM -  7:26 PM CET  
+Monday, Nov 30 2020, ~ 2:16 AM -  2:26 AM +08
 
 [[!inline pages="internal(2020/info/27)" raw="yes"]]
 
diff --git a/2020/schedule/28.md b/2020/schedule/28.md
index 76002754..2b88d33a 100644
--- a/2020/schedule/28.md
+++ b/2020/schedule/28.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/29">Pathing of Least Resistance</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  1:29 PM -  2:19 PM EST  
-Sunday, Nov 29 2020, 10:29 AM - 11:19 AM PST  
-Sunday, Nov 29 2020,  6:29 PM -  7:19 PM UTC  
-Sunday, Nov 29 2020,  7:29 PM -  8:19 PM CET  
-Monday, Nov 30 2020,  2:29 AM -  3:19 AM +08
+Sunday, Nov 29 2020, ~ 1:29 PM -  2:19 PM EST  
+Sunday, Nov 29 2020, ~10:29 AM - 11:19 AM PST  
+Sunday, Nov 29 2020, ~ 6:29 PM -  7:19 PM UTC  
+Sunday, Nov 29 2020, ~ 7:29 PM -  8:19 PM CET  
+Monday, Nov 30 2020, ~ 2:29 AM -  3:19 AM +08
 
 [[!inline pages="internal(2020/info/28)" raw="yes"]]
 
diff --git a/2020/schedule/29.md b/2020/schedule/29.md
index aad01ca1..95f56e10 100644
--- a/2020/schedule/29.md
+++ b/2020/schedule/29.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/30">A tour of vterm</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  2:22 PM -  2:42 PM EST  
-Sunday, Nov 29 2020, 11:22 AM - 11:42 AM PST  
-Sunday, Nov 29 2020,  7:22 PM -  7:42 PM UTC  
-Sunday, Nov 29 2020,  8:22 PM -  8:42 PM CET  
-Monday, Nov 30 2020,  3:22 AM -  3:42 AM +08
+Sunday, Nov 29 2020, ~ 2:22 PM -  2:42 PM EST  
+Sunday, Nov 29 2020, ~11:22 AM - 11:42 AM PST  
+Sunday, Nov 29 2020, ~ 7:22 PM -  7:42 PM UTC  
+Sunday, Nov 29 2020, ~ 8:22 PM -  8:42 PM CET  
+Monday, Nov 30 2020, ~ 3:22 AM -  3:42 AM +08
 
 [[!inline pages="internal(2020/info/29)" raw="yes"]]
 
diff --git a/2020/schedule/30.md b/2020/schedule/30.md
index 40dc2e37..ceba73cf 100644
--- a/2020/schedule/30.md
+++ b/2020/schedule/30.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/31">Lakota Language and Emacs</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  2:45 PM -  2:55 PM EST  
-Sunday, Nov 29 2020, 11:45 AM - 11:55 AM PST  
-Sunday, Nov 29 2020,  7:45 PM -  7:55 PM UTC  
-Sunday, Nov 29 2020,  8:45 PM -  8:55 PM CET  
-Monday, Nov 30 2020,  3:45 AM -  3:55 AM +08
+Sunday, Nov 29 2020, ~ 2:45 PM -  2:55 PM EST  
+Sunday, Nov 29 2020, ~11:45 AM - 11:55 AM PST  
+Sunday, Nov 29 2020, ~ 7:45 PM -  7:55 PM UTC  
+Sunday, Nov 29 2020, ~ 8:45 PM -  8:55 PM CET  
+Monday, Nov 30 2020, ~ 3:45 AM -  3:55 AM +08
 
 [[!inline pages="internal(2020/info/30)" raw="yes"]]
 
diff --git a/2020/schedule/31.md b/2020/schedule/31.md
index efefb492..f533eff8 100644
--- a/2020/schedule/31.md
+++ b/2020/schedule/31.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/32">Object Oriented Code in the Gnus Newsreader</a
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  2:58 PM -  3:08 PM EST  
-Sunday, Nov 29 2020, 11:58 AM - 12:08 PM PST  
-Sunday, Nov 29 2020,  7:58 PM -  8:08 PM UTC  
-Sunday, Nov 29 2020,  8:58 PM -  9:08 PM CET  
-Monday, Nov 30 2020,  3:58 AM -  4:08 AM +08
+Sunday, Nov 29 2020, ~ 2:58 PM -  3:08 PM EST  
+Sunday, Nov 29 2020, ~11:58 AM - 12:08 PM PST  
+Sunday, Nov 29 2020, ~ 7:58 PM -  8:08 PM UTC  
+Sunday, Nov 29 2020, ~ 8:58 PM -  9:08 PM CET  
+Monday, Nov 30 2020, ~ 3:58 AM -  4:08 AM +08
 
 [[!inline pages="internal(2020/info/31)" raw="yes"]]
 
diff --git a/2020/schedule/32.md b/2020/schedule/32.md
index 5aaad3af..e5cb12ce 100644
--- a/2020/schedule/32.md
+++ b/2020/schedule/32.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/33">Maxima a computer algebra system in Emacs</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  3:11 PM -  3:31 PM EST  
-Sunday, Nov 29 2020, 12:11 PM - 12:31 PM PST  
-Sunday, Nov 29 2020,  8:11 PM -  8:31 PM UTC  
-Sunday, Nov 29 2020,  9:11 PM -  9:31 PM CET  
-Monday, Nov 30 2020,  4:11 AM -  4:31 AM +08
+Sunday, Nov 29 2020, ~ 3:11 PM -  3:31 PM EST  
+Sunday, Nov 29 2020, ~12:11 PM - 12:31 PM PST  
+Sunday, Nov 29 2020, ~ 8:11 PM -  8:31 PM UTC  
+Sunday, Nov 29 2020, ~ 9:11 PM -  9:31 PM CET  
+Monday, Nov 30 2020, ~ 4:11 AM -  4:31 AM +08
 
 [[!inline pages="internal(2020/info/32)" raw="yes"]]
 
diff --git a/2020/schedule/33.md b/2020/schedule/33.md
index ee7e56b9..66fb1917 100644
--- a/2020/schedule/33.md
+++ b/2020/schedule/33.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/34">Extend Emacs to Modern GUI Applications with E
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  3:34 PM -  3:54 PM EST  
-Sunday, Nov 29 2020, 12:34 PM - 12:54 PM PST  
-Sunday, Nov 29 2020,  8:34 PM -  8:54 PM UTC  
-Sunday, Nov 29 2020,  9:34 PM -  9:54 PM CET  
-Monday, Nov 30 2020,  4:34 AM -  4:54 AM +08
+Sunday, Nov 29 2020, ~ 3:34 PM -  3:54 PM EST  
+Sunday, Nov 29 2020, ~12:34 PM - 12:54 PM PST  
+Sunday, Nov 29 2020, ~ 8:34 PM -  8:54 PM UTC  
+Sunday, Nov 29 2020, ~ 9:34 PM -  9:54 PM CET  
+Monday, Nov 30 2020, ~ 4:34 AM -  4:54 AM +08
 
 [[!inline pages="internal(2020/info/33)" raw="yes"]]
 
diff --git a/2020/schedule/34.md b/2020/schedule/34.md
index a4accb5a..e3316ee9 100644
--- a/2020/schedule/34.md
+++ b/2020/schedule/34.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/35">WAVEing at Repetitive Repetitive Repetitive Mu
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  3:57 PM -  4:17 PM EST  
-Sunday, Nov 29 2020, 12:57 PM -  1:17 PM PST  
-Sunday, Nov 29 2020,  8:57 PM -  9:17 PM UTC  
-Sunday, Nov 29 2020,  9:57 PM - 10:17 PM CET  
-Monday, Nov 30 2020,  4:57 AM -  5:17 AM +08
+Sunday, Nov 29 2020, ~ 3:57 PM -  4:17 PM EST  
+Sunday, Nov 29 2020, ~12:57 PM -  1:17 PM PST  
+Sunday, Nov 29 2020, ~ 8:57 PM -  9:17 PM UTC  
+Sunday, Nov 29 2020, ~ 9:57 PM - 10:17 PM CET  
+Monday, Nov 30 2020, ~ 4:57 AM -  5:17 AM +08
 
 [[!inline pages="internal(2020/info/34)" raw="yes"]]
 
diff --git a/2020/schedule/35.md b/2020/schedule/35.md
index 5bd6c7c0..c99df7ae 100644
--- a/2020/schedule/35.md
+++ b/2020/schedule/35.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/42">16:30 - 17:00 Closing remarks</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  4:20 PM -  4:30 PM EST  
-Sunday, Nov 29 2020,  1:20 PM -  1:30 PM PST  
-Sunday, Nov 29 2020,  9:20 PM -  9:30 PM UTC  
-Sunday, Nov 29 2020, 10:20 PM - 10:30 PM CET  
-Monday, Nov 30 2020,  5:20 AM -  5:30 AM +08
+Sunday, Nov 29 2020, ~ 4:20 PM -  4:30 PM EST  
+Sunday, Nov 29 2020, ~ 1:20 PM -  1:30 PM PST  
+Sunday, Nov 29 2020, ~ 9:20 PM -  9:30 PM UTC  
+Sunday, Nov 29 2020, ~10:20 PM - 10:30 PM CET  
+Monday, Nov 30 2020, ~ 5:20 AM -  5:30 AM +08
 
 [[!inline pages="internal(2020/info/35)" raw="yes"]]
 
diff --git a/2020/schedule/38.md b/2020/schedule/38.md
index 69aa6071..7e0ab255 100644
--- a/2020/schedule/38.md
+++ b/2020/schedule/38.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/22">Powering-up Special Blocks</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  9:13 AM -  9:30 AM EST  
-Sunday, Nov 29 2020,  6:13 AM -  6:30 AM PST  
-Sunday, Nov 29 2020,  2:13 PM -  2:30 PM UTC  
-Sunday, Nov 29 2020,  3:13 PM -  3:30 PM CET  
-Sunday, Nov 29 2020, 10:13 PM - 10:30 PM +08
+Sunday, Nov 29 2020, ~ 9:13 AM -  9:30 AM EST  
+Sunday, Nov 29 2020, ~ 6:13 AM -  6:30 AM PST  
+Sunday, Nov 29 2020, ~ 2:13 PM -  2:30 PM UTC  
+Sunday, Nov 29 2020, ~ 3:13 PM -  3:30 PM CET  
+Sunday, Nov 29 2020, ~10:13 PM - 10:30 PM +08
 
 [[!inline pages="internal(2020/info/38)" raw="yes"]]
 
diff --git a/2020/schedule/39.md b/2020/schedule/39.md
index 86218f8e..3c9fad21 100644
--- a/2020/schedule/39.md
+++ b/2020/schedule/39.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/26">Emacs as a Highschooler: How It Changed My Lif
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020, 11:25 AM - 11:45 AM EST  
-Sunday, Nov 29 2020,  8:25 AM -  8:45 AM PST  
-Sunday, Nov 29 2020,  4:25 PM -  4:45 PM UTC  
-Sunday, Nov 29 2020,  5:25 PM -  5:45 PM CET  
-Monday, Nov 30 2020, 12:25 AM - 12:45 AM +08
+Sunday, Nov 29 2020, ~11:25 AM - 11:45 AM EST  
+Sunday, Nov 29 2020, ~ 8:25 AM -  8:45 AM PST  
+Sunday, Nov 29 2020, ~ 4:25 PM -  4:45 PM UTC  
+Sunday, Nov 29 2020, ~ 5:25 PM -  5:45 PM CET  
+Monday, Nov 30 2020, ~12:25 AM - 12:45 AM +08
 
 [[!inline pages="internal(2020/info/39)" raw="yes"]]
 
diff --git a/2020/schedule/40.md b/2020/schedule/40.md
index fe65b9b8..ff29d15b 100644
--- a/2020/schedule/40.md
+++ b/2020/schedule/40.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/41">9:00 - 9:10 Opening remarks</a>
 
 
 Approximate time (might be earlier or later):  
-Saturday, Nov 28 2020,  4:30 PM -  5:00 PM EST  
-Saturday, Nov 28 2020,  1:30 PM -  2:00 PM PST  
-Saturday, Nov 28 2020,  9:30 PM - 10:00 PM UTC  
-Saturday, Nov 28 2020, 10:30 PM - 11:00 PM CET  
-Sunday, Nov 29 2020,  5:30 AM -  6:00 AM +08
+Saturday, Nov 28 2020, ~ 4:30 PM -  5:00 PM EST  
+Saturday, Nov 28 2020, ~ 1:30 PM -  2:00 PM PST  
+Saturday, Nov 28 2020, ~ 9:30 PM - 10:00 PM UTC  
+Saturday, Nov 28 2020, ~10:30 PM - 11:00 PM CET  
+Sunday, Nov 29 2020, ~ 5:30 AM -  6:00 AM +08
 
 [[!inline pages="internal(2020/info/40)" raw="yes"]]
 
diff --git a/2020/schedule/41.md b/2020/schedule/41.md
index 508418cf..49f84b41 100644
--- a/2020/schedule/41.md
+++ b/2020/schedule/41.md
@@ -10,11 +10,11 @@ Next: <a href="/2020/schedule/38">Emacs development update</a>
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  9:00 AM -  9:10 AM EST  
-Sunday, Nov 29 2020,  6:00 AM -  6:10 AM PST  
-Sunday, Nov 29 2020,  2:00 PM -  2:10 PM UTC  
-Sunday, Nov 29 2020,  3:00 PM -  3:10 PM CET  
-Sunday, Nov 29 2020, 10:00 PM - 10:10 PM +08
+Sunday, Nov 29 2020, ~ 9:00 AM -  9:10 AM EST  
+Sunday, Nov 29 2020, ~ 6:00 AM -  6:10 AM PST  
+Sunday, Nov 29 2020, ~ 2:00 PM -  2:10 PM UTC  
+Sunday, Nov 29 2020, ~ 3:00 PM -  3:10 PM CET  
+Sunday, Nov 29 2020, ~10:00 PM - 10:10 PM +08
 
 [[!inline pages="internal(2020/info/41)" raw="yes"]]
 
diff --git a/2020/schedule/42.md b/2020/schedule/42.md
index 60b41c29..71ed4146 100644
--- a/2020/schedule/42.md
+++ b/2020/schedule/42.md
@@ -9,11 +9,11 @@ Previous: <a href="/2020/schedule/35">WAVEing at Repetitive Repetitive Repetitiv
 
 
 Approximate time (might be earlier or later):  
-Sunday, Nov 29 2020,  4:30 PM -  5:00 PM EST  
-Sunday, Nov 29 2020,  1:30 PM -  2:00 PM PST  
-Sunday, Nov 29 2020,  9:30 PM - 10:00 PM UTC  
-Sunday, Nov 29 2020, 10:30 PM - 11:00 PM CET  
-Monday, Nov 30 2020,  5:30 AM -  6:00 AM +08
+Sunday, Nov 29 2020, ~ 4:30 PM -  5:00 PM EST  
+Sunday, Nov 29 2020, ~ 1:30 PM -  2:00 PM PST  
+Sunday, Nov 29 2020, ~ 9:30 PM - 10:00 PM UTC  
+Sunday, Nov 29 2020, ~10:30 PM - 11:00 PM CET  
+Monday, Nov 30 2020, ~ 5:30 AM -  6:00 AM +08
 
 [[!inline pages="internal(2020/info/42)" raw="yes"]]
 
diff --git a/2020/submissions.org b/2020/submissions.org
index ddadf2b2..df01af96 100644
--- a/2020/submissions.org
+++ b/2020/submissions.org
@@ -3232,7 +3232,7 @@ conference for instructions on how to watch and participate. See you then!
                                 (mapconcat
                                  (lambda (tz)
                                    (format "%s - %s"
-                                           (format-time-string "%A, %b %e %Y, %l:%M %p"
+                                           (format-time-string "%A, %b %e %Y, ~%l:%M %p"
                                                                (org-timestamp-to-time (org-timestamp-split-range timestamp)) tz)
                                            (format-time-string "%l:%M %p %Z"
                                                                (org-timestamp-to-time (org-timestamp-split-range timestamp t)) tz)))