https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64968
--- Comment #32 from Frédéric Buclin <LpSolit at netscape dot net> --- For some reason, DateTime::TimeZone->new(name => 'local') sometimes returns Asia/Kolkata, which explains the -05:30 offset observed in the famous 2% of bugmails with an incorrect timestamp. I added extra debug code to track which TZ method is the culprit.