Mike McCarty wrote: > Les Mikesell wrote: >> >> >> Ntp and fedora always run in UTC which doesn't change for local DST > > Are you sure about this, Les? I've got a Fedora install, and I recall > specifically telling it to use hardware time, not UTC, and when I > boot Windows XP it tells me the same time as Fedora. > >> variations. The tzdata info is used for conversions to display >> localtime using the local conventions for the user's timezone. > > Mike The time when the system is running is in UTC, and converted to local time for display. The system reads the hardware clock on boot, and I believe on resuming from suspend. It writes to the hardware clock on shutdown. (and suspend?) The settings in /etc/adjtime tell hwclock to use UTC or localtime when talking to the clock, and give drift information for the hardware clock. /etc/sysconfig/clock has local time information, and if the clock is local time or UTC. The system also uses local time for most logs, and for cron jobs. Also, a user's time zone can be different then the system time zone... Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
