I have recently installed ZCS 8.0.6 open source version. Everything is working fine however I have an problem with the Calendar.

1. The Calendar always asks to confirm the timezone even after it has been setup.

2. ZCS does not provide the option of selecting our timezone with is the NPT (GMT +5:45) even though the time zone is show in ZCS wiki in Known Time Zones for zimbraPrefTimeZoneId as (GMT+05.45) Kathmandu. This setting however in available /opt/zimbra/conf/timezones.ics but it doesn't display in the calendar timezone.

Snapshots are attached.

Any help on this would be highly appreciated.

Thank you.
Default timezone request.gif
NPT unavailable.gif
timezone.jpg