tzreload —
notify timezone update
The tzreload command triggers processes to reread
timezone information. The timezone information is cached in each process. In
response to a tzreload command, this cache is updated
on the next call to ctime(3C) and
mktime(3C) by each process. By default,
tzreload only triggers this update for the current
zone.
In addition to updating processes, the
tzreload command also notifies
cron(1M) to reinitialize the job scheduler with the new
timezone information.
The following options are supported:
-a- Update processes in all zones.
- /usr/share/lib/zoneinfo
- Standard zone information directory.
Although tzreload reinitializes
cron(1M), applications that are affected by timezone changes
still need to be restarted or reinitialized if they do not reread the new
timezone information before timezone changes take place.