Difference between revisions of "Linux datetime"
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== Correct for clock drift == | == Correct for clock drift == | ||
| − | For where its not possible to run ntpd you may use adjtimex to correct for systematic drift. | + | For where its not possible to run [[ntpd]] you may use adjtimex to correct for systematic drift. |
<pre> | <pre> | ||
aptitude install adjtimex | aptitude install adjtimex | ||
</pre> | </pre> | ||
Revision as of 16:13, 28 July 2008
Set timezone and clock on Linux
1. su to root
2. Find your timezone file under /usr/share/zoneinfo. For example:
/usr/share/zoneinfo/US/Pacific
3. OPTIONAL: backup the current timezone configuration:
cp /etc/localtime /etc/localtime.old
4. Create a symbolic link from the appropiate timezone to /etc/localtime.
ln -sf /usr/share/zoneinfo/US/Pacific /etc/localtime
or
ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime
5. Use rdate or ntpdate to set the system time (ntpdate is better):
/usr/sbin/ntpdate time.nist.gov
or
/usr/bin/rdate time.nist.gov
6. Set the hardware clock to the system time:
/sbin/hwclock --systohc
Correct for clock drift
For where its not possible to run ntpd you may use adjtimex to correct for systematic drift.
aptitude install adjtimex
