On Monday 03 May 2004 22:48, Tzafrir Cohen wrote: > On Mon, May 03, 2004 at 08:40:02PM +0300, Dan Fruehauf wrote: > > I've been googling for a while and couldnt find it, so here i am. > > for some reasons i prefer not to go into, i have to synchronize clocks > > between machines where one machine has it's clock on GMT and the other > > doesnt (it's clock is GMT + x hours forward / backward). > > Actually: Israel's time zone is not defined as "GMT+2" or "GMT+3". It is > defined as "Israel's official time zone. And its offset from GMT thus > varies over the year. > > > my question is, is it possible to configure ntpd (or any other ntp > > client) to fetch the time from some distant ntp server and to apply an > > offset (like -1 hour, -2 hours, or something similar) on the time it > > recieves from the server? > > Basically: no. Naturally it can be done. But it seems you misunderstand > what time zones are. can ntp do that? > > THe whole purpose of the time zones is to be able to use the same clock > as everybody else in the world, and only display it locally as the > correct time for the location. spare this arguement from me, i know what is the purpose of timezones, and a clock set to GMT (or UTC). > > Time is usually saved and transfered as an offset from a certain time in > the past. E.g: he number of seconds since a certain Epoch. In unix time > is usually kept as the number of seconds since 1.1.1970 GMT (or UTC? > nm). In ntp the time is usually kept as the number of seconds since > 1.1.1980 GMT, IIRC. If the computers don't agree on the time bad things > happen: you can send a mail to somone and the recipient gets a mail "from > the future". Or gets the response "an hour too late (and he has the logs > to show it). i need an answer to my question, not a definition of timezones =D > > So the ntp clients and server don't really care about the local time > zone. They only want to make the > > (the above is actually slightly over-simplistic. But the cunclusion > below should hold anyway) > > So what you need to do is to fix the time-zone definition of the local > system. Not further break your synchronizaiion with the world.
Thanks for relating to it. Dan. ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
