Time zones are such a pain–we ought to all do everything in UTC and forget
about it.
Hyo-Chan, you are probably in PDT, right now, which is UTC – 7 hours. Your
emails are 7 hours behind your received time because of time zone settings.
For instance:
Suppose it’s 1600 PDT, and therefore 2300 UTC. You send an email, and the
program generating the email thinks that 1600 on your server means 1600
UTC, so it subtracts 7 hours. That puts the times in the email 7 hours behind
the sent time.
In your case, it’s more likely to be that the sending server and the receiving
server have a difference of opinion about what the timestamp is relative to.
It’s hard to know exactly what is going on without looking at the headers, but
probably your sending server is not putting a UTC offset on the timestamp and
the receiving server is converting the PDT time as if it were a UTC time,
and adding 7 hours to the received time.
I may have mentioned this: time zones are a pain.
–kk