[tz] zdump bug in Asia/Singapore
eggert at cs.ucla.edu
Sun Sep 7 03:50:32 UTC 2014
Tim Parenti wrote:
> most users would expect to find such a transition in the
> year you call N+1, since that's when the actual onset of the transition occurs.
I'm not so sure. In everyday English there's not a general agreement
whether midnight falls at the end of day N, or between day N and day
N+1, or at the start of day N+1. This ambiguity is why so many laws
take effect one minute after midnight. See, for example:
It's plausible for zdump to consider a transition from 23:59:59 (which
is inarguably the previous day) to midnight (which is ambiguous) to be
in the previous day. It's also plausible for zdump to consider it to be
in the next day. Whatever. It doesn't really matter, so long as zdump
is consistent about it.
More information about the tz