Time
Commands
ntp hwclock time
Files
/etc/sysconfig/clock /etc/adjtime
Links
http://www.linuxfromscratch.org/hints/downloads/files/time.txt
http://www.debian.org/doc/manuals/system-administrator/ch-sysadmin-time.html
Timezones
TODO: write up how to change timezones
export TZ="Pacific/Auckland"
Just modifies the user logged in with that environment.
/etc/timezone
Is a Debian thing.
lrwxrwxrwx 1 root root 33 May 30 00:59 /etc/localtime -> /usr/share/zoneinfo/Europe/London
Is the RedHat way.
A reboot is probably required after changing this.
Here's a good article on Linux time handling: http://www.linuxsa.org.au/tips/time.html
