Unable to log in current local time EST

Dear All,

I have my log_line_prefix set to
log_line_prefix = '[%d]%p %x %c[%l] %t %i'
in postgresql.conf

psql -c 'show timezone'
TimeZone
------------
US/Eastern

tail -2 omi_acps.log ; date
[sipsdb]20180 0 57ab7dcd.4ed4[11895717] 2016-08-25 15:32:45 GMT
SELECTLOG: duration: 0.326 ms
[sipsdb]20180 0 57ab7dcd.4ed4[11895718] 2016-08-25 15:32:45 GMT idle in
transactionLOG: statement: fetch all in "<unnamed portal 854341>"
Thu Aug 25 11:32:45 EDT 2016
My host is running EST time.

Postgres keeps log the GMT time.
I want to log EST time. How can I do that? Your help would be greatly
appreciated.

--
Best regards,

Alex Lai (:-)
OMP SIPS DBA ADNET Systems, Inc.

7515 Mission Drive, Suite A100
Lanham, MD 20706
301 352-4657 (phone)
301 352-0437 (fax)
mlai(at)sesda3(dot)com