Definitions for "Time Zone"
All the auctions at IndiaMART use GREENWICH MEAN TIME (GMT) as their reference point.
A geographical region that uses the same time. There are 25 hourly time zones from -12 through +12 (GMT is 0). Each time zone is measured relative to GMT. Most time zones have localized designations in three-letter abbreviations. The Calendar Server also identifies time zones using a time zone ID (TZID) such as America/Los_Angeles or Asia/Calcutta.
A region on the Earth assigned a specific zone relative to Greenwich Mean Time, defined as time zone 0.
Keywords:  workgroup, adding
Adding a Workgroup
a completely arbitrary set of time intervals
Time intervals during which an activity is permitted.
Keywords:  standard, area
An area using the same standard of time.