hawat.thufir@xxxxxxxxx wrote: > On Tue, 22 Aug 2006, Tim wrote: > [...] >> Is your local time supposed to be different than IST? > [...] > > Generally, yes. Sometimes it might be the same, if your local time is > GMT (Grenwich Mean Time). > > > IST ?=? International Standard Time > > It's "good" for computers because: > > 1.) no daylight savings, the clock never moves > 2.) your clock and my clock, if they both use IST, will have the same > time regardless of where we are. > 3.) Good for traveling laptops, which move from one timezone to another. > > It's similar to how the military uses zulu (GMT) to synchronize their > operations, same concept, similar benefits. > > I like to set the hardware clock to UTC, and then set the time zome for the computer to the local time zone. That way, the system takes care of things like daylight savings time automatically, but things like cron jobs run based on local time. The only drawback is that the timestamp in the logs can get confusing sometimes, because while most things are logged using local time, some things are logged using the hardware clock... The way I understand it, regardless of how you have your hardware clock set, Linux uses UTC internally, and converts to local time as necessary to display the time/date. At least it does if you have set things up correctly. It is possible to have the hardware clock set to local time, tell Linux it is set to UTC, and that UTC is the local time zone. (You have to work at it to set it up this way...) Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
