Yes. Australia/Lord_Howe currently has a 30-minute difference between its standard and daylight times. Also, Antarctica/Troll has a 2-hour difference.
I'm not sure if there's an easy way to determine this directly from the tz files, but since the data is also parsed and distributed through various platforms, languages, libraries, and tools, it's probably something you could do externally. For example, you could probably write some Python script with zoneinfo data, which originates from here. Another third-party option would be to look at the Wikipedia page that is generated based on the "current" data. https://en.wikipedia.org/wiki/List_of_tz_database_time_zones Regards, Matt On Mon, Mar 3, 2025, 1:01 PM Doug Ewell via tz <tz@iana.org> wrote: > 1. Are there any time zones that currently observe DST with an offset > other than adding one hour? > > (For this question, I am treating “negative DST” zones like Europe/Dublin > and Africa/Windhoek as if they observed “standard” time in winter and > adjusted time in summer. Also, for this question I am only interested in > current practice, not historical.) > > 2. Is there an easy way I could have looked up this information in the tz > files? > > (“Easy” means without exhaustively parsing all the Rule and Zone lines, as > a processor would have to do.) > > Thanks, > > -- > Doug Ewell, CC, ALB | Lakewood, CO, US | ewellic.org > >
