DST changes aren't even necessary. Unless someone plans to adjust the map periodically. I agree with Peter: put UTC+delta in INFO.TXT. For the moment that is fine. No southern hemisphere users in HECnet, right ? ------Origineel bericht------ Van: Peter Lothberg Afzender: owner-hecnet at Update.UU.SE Aan: hecnet at Update.UU.SE Cc: hecnet at Update.UU.SE Beantwoorden: hecnet at Update.UU.SE Onderwerp: RE: SV: [HECnet] Hecnet map update Verzonden: 10 januari 2012 20:47 I like the idea of expanding the info.txt .. time zone column=20 Fine by me. How is time zone expressed? Simply giving a numeric = offset from GMT is problematic for places that observe daylight savings = time - we'd have to update the file twice every year. Can we use = something like PST8PDT?? Bob A box of worms: So there is 1h, 30min and 15min timezones and some +300 local daylight savings rules. Suggestion is that you put the current UTC offset in the file, and have a local batch/cron job that modifies it according to local DST rules. For those intertested, http://www.iana.org/time-zones has the list... -:) --Peter