Despite the system time as well as the timezone are correct, Horde for some reason uses the different timezone (UTC by default). How can the timezone be configured for Horde server-wide?
Horde uses its own 'php.ini' file and the timezone is not configured there.
Add the timezone parameter in
date.timezone = Asia/Singapore
Get full list of TimeZones you can find by the follwoing link:
NOTE: Each user can configure its own timezone.