Timezone conversion
GMT to IST: current time and meeting overlap.
Quick answer: IST is 5 hours 30 minutes ahead of GMT. Best overlap: 9:20 AM-11:30 AM in GMT, which is 2:50 PM-5:00 PM in IST.
GMT UTC+0 · UTC
5:20 PM IST UTC+5:30 · GMT+5:30
10:50 PM
overlap
9:20 AM-11:30 AM
tight Suggested meeting window
9:20 AM-10:20 AM GMT -> 2:50 PM-3:50 PM IST
Planning guide Best times and checks before sending. Show Hide
What to do with this timezone conversion.
Use this page when you have a specific GMT time and need the matching IST time before sending it to someone else.
1
Use the converter for the exact GMT time, then check whether the resulting IST time is still reasonable for a person.
2
For launch, webinar, support, or incident work, copy the converted time with the date because the target side may land on a different day.
3
When several people are involved, move from conversion to the meeting planner before committing the time.
When this page is useful
Real situations for GMT to IST.
These notes focus on the scheduling or conversion mistakes people actually make before sending a time.
GMT schedule shared with India
Use GMT to IST when a UK or UTC-based schedule needs to be shared with India without asking people to calculate the five-and-a-half-hour offset.
India-facing webinars and handoffs
This page is useful for webinars, support handoffs, and remote team updates where India receives the invite after the source time is fixed.
Half-hour offset check
Use this conversion when an invite crosses into India because IST uses a half-hour offset that people often miss in mental math.
Scheduling workflow Show Hide
Include the date and both local times.
Suggested conversion note: confirm the selected GMT time, copy the matching IST time, and include the date if the result crosses midnight.
Confirm the date
Pick the actual date first so GMT to IST reflects daylight-saving rules for that day.
Check the overlap
A correct conversion can still be a bad meeting time. If a real person must attend, check the overlap before sending.
Share both sides
Send the GMT time and the IST time together so nobody has to recalculate.
Reference table Hourly conversion table Show Hide
| GMT | 24h | IST | 24h | Date |
|---|---|---|---|---|
| 12:00 AM | 00:00 | 5:30 AM | 05:30 | same day |
| 1:00 AM | 01:00 | 6:30 AM | 06:30 | same day |
| 2:00 AM | 02:00 | 7:30 AM | 07:30 | same day |
| 3:00 AM | 03:00 | 8:30 AM | 08:30 | same day |
| 4:00 AM | 04:00 | 9:30 AM | 09:30 | same day |
| 5:00 AM | 05:00 | 10:30 AM | 10:30 | same day |
| 6:00 AM | 06:00 | 11:30 AM | 11:30 | same day |
| 7:00 AM | 07:00 | 12:30 PM | 12:30 | same day |
| 8:00 AM | 08:00 | 1:30 PM | 13:30 | same day |
| 9:00 AM | 09:00 | 2:30 PM | 14:30 | same day |
| 10:00 AM | 10:00 | 3:30 PM | 15:30 | same day |
| 11:00 AM | 11:00 | 4:30 PM | 16:30 | same day |
Related timezone pages
Keep comparing without starting over.
Timezone questions answered
How do I convert GMT to IST?
Select the GMT date and time in the converter, and useChrono will show the matching IST time with same-day or date-rollover context.
How accurate is this timezone page?
useChrono uses IANA timezone identifiers through the browser and platform Intl API, so daylight-saving changes are reflected when the runtime timezone data is current.
Should I use the converter or the meeting planner?
Use the converter for one exact time. Use the meeting planner when the time needs to be fair for people in both locations.
Why should I include both local times in an invite?
Calendar apps can display times in the viewer timezone. Including both local times reduces mistakes for remote teams and cross-region handoffs.
Data note: useChrono uses IANA timezone identifiers and the platform Intl API. Daylight-saving rules can change, so confirm mission-critical times in your calendar system.