GMT to Mumbai Time Converter
Convert Greenwich Mean Time to Mumbai instantly.
Scroll the timeline to check any hour of the day.
Greenwich Mean Time
GMT
8:10
Mumbai
IST
12:40
GMT is on daylight savings (BST), while Mumbai is on standard time (IST) right now.
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How the GMT to Mumbai time difference works
Mumbai is 4 hours 30 minutes ahead of GMT. Greenwich Mean Time (GMT) is the time zone of the United Kingdom and Ireland. Mumbai (IST) is a city in India. For example, 9:00 AM GMT is 1:30 PM Mumbai. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
4 hours 30 minutes
Daylight saving
GMT only
GMT offset
UTC+0
Mumbai offset
UTC+5:30
GMT to Mumbai conversion chart
| Greenwich Mean Time (GMT) | Mumbai (IST) |
|---|---|
| 12:00 AM | 4:30 AM |
| 1:00 AM | 5:30 AM |
| 2:00 AM | 6:30 AM |
| 3:00 AM | 7:30 AM |
| 4:00 AM | 8:30 AM |
| 5:00 AM | 9:30 AM |
| 6:00 AM | 10:30 AM |
| 7:00 AM | 11:30 AM |
| 8:00 AM | 12:30 PM |
| 9:00 AM | 1:30 PM |
| 10:00 AM | 2:30 PM |
| 11:00 AM | 3:30 PM |
| 12:00 PM | 4:30 PM |
| 1:00 PM | 5:30 PM |
| 2:00 PM | 6:30 PM |
| 3:00 PM | 7:30 PM |
| 4:00 PM | 8:30 PM |
| 5:00 PM | 9:30 PM |
| 6:00 PM | 10:30 PM |
| 7:00 PM | 11:30 PM |
| 8:00 PM | 12:30 AM +1 day |
| 9:00 PM | 1:30 AM +1 day |
| 10:00 PM | 2:30 AM +1 day |
| 11:00 PM | 3:30 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 12:30 PM GMT (1:30 PM to 5:00 PM Mumbai). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Mumbai (IST)
New DelhiBangaloreHyderabadChennaiPuneSurat
GMT to Mumbai questions
Is Mumbai ahead of or behind GMT?
Mumbai is 4 hours 30 minutes ahead of GMT. So 9:00 AM GMT is 1:30 PM Mumbai, and 5:00 PM GMT is 9:30 PM Mumbai.
What time is it in Mumbai when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 4:30 PM Mumbai in Mumbai.
How many hours difference is there between GMT and Mumbai?
There is a 4 hours 30 minutes difference. Mumbai (IST) runs 4 hours 30 minutes ahead of Greenwich Mean Time (GMT).
Do GMT and Mumbai observe daylight saving time?
Greenwich Mean Time observes daylight saving time but Mumbai does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between GMT and Mumbai?
A standard 9-to-5 workday overlaps from 9:00 AM to 12:30 PM GMT (1:30 PM to 5:00 PM Mumbai). Scheduling inside that window keeps the call during business hours in both Greenwich Mean Time and Mumbai.
Which cities use GMT and Mumbai?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. Mumbai (IST) covers cities such as New Delhi, Bangalore, Hyderabad, Chennai, Pune, Surat.