daylight saving

[Arnau <arnaulist@andromeiberica.com>]

Hi all,

  I'm intrigued about how linux changes the time according to the 
daylight saving time rules. I know that those rules are stored in 
/usr/share/zoneinfo/ but I don't know which process does this change, 
I'm pretty sure it can't be a cron task that does this change, am I 
wrong? Anybody knows this? I have been "googling" and haven't found any 
response to this.

Thanks
--
Arnau