[tz] An outline of a possible solution for sensible leap-second support.

Paul Ganssle pganssle at gmail.com
Mon Feb 16 05:28:06 UTC 2015

Have there actually been any time zones that are not an even multiple of a
whole minute since the advent of leap seconds? The only non whole minute
time zone I know about is Dublin Mean Time, which hasn't been used since
On Feb 15, 2015 3:48 PM, "John Haxby" <john.haxby at oracle.com> wrote:

> On 15 Feb 2015, at 14:12, random832 at fastmail.us wrote:
> Also, general question: is there any standard on how leap seconds are to
> be handled in timezones that have an offset that is not a multiple of
> one whole minute? What does tzcode do now?
> Leap seconds are inserted or deleted at midnight UTC at the end of March,
> June, September or December with at least three months notice.  So a leap
> second could be inserted or deleted at about lunchtime in New Zealand or
> 5.30am in India.
> jch
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