I've been messing around with timestamps and timezones lately, and was
curious to see how posts to debian users might be distributed around
the globe, as indicated in the message timestamp.
My local archive of the du list is far from complete, as I tend to
delete a lot of stuff and it only goes back about 3 years, with about
8000 messages currently stored.
$ grep ^Date: ~/Mail/list/debian/user | \
perl -ne 'print "$1\n" if m/([+-][01]\d\d\d)/' | \
sort -n | uniq -c
1 -1200
72 -0900
791 -0800
875 -0700
806 -0600
1481 -0500
944 -0400
56 -0300
45 -0200
31 -0000
499 +0000
1082 +0100
736 +0200
52 +0300
4 +0400
43 +0530
1 +0545
9 +0700
150 +0800
49 +0900
9 +0930
101 +1000
5 +1030
93 +1100
16 +1200
20 +1300
This simplistic view ignores daylight savings effects and any number of
other complicating factors, but I think it gives a crude hint at the span
of debian users around the world.
I'd like to be able to extend the pipe to maybe plot a bar chart against
a world map, but that'll have to wait.