Default time for server UTC?

[Joseph R. Junkin]

What is the 'standard' timezone that people use for the email server?

I am in CA and my server is in San Jose, each time I post a message to a
mailing list, it appears with about a 2-3 hour time lag.

I dug in the archives and noticed that:

"Qmail always uses UTC.  It's hard coded in."

So UTC is Universal Coordinated Time. Should I set the servers bios
clock to UTC? I use RedHat Linux and I am about to set it up again.
Should I choose a timezone of UTC?