Convert GMT (Greenwich Mean Time) to IST (Indian Standard Time) instantly, with live clocks and a meeting-planner view for both zones.
Mint = business hours (9 AM–6 PM) in that zone; peach = early/late hours; grey = overnight. The dark line marks your selected time.
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This tool converts GMT (Greenwich Mean Time) to IST (Indian Standard Time) instantly. GMT is the reference time zone at 0° longitude and does not observe Daylight Saving Time, while IST is a fixed offset of UTC+5:30 used across India. Just pick a date and time, and the converted result appears immediately.
India Standard Time is always 5 hours and 30 minutes ahead of GMT, all year round, since neither zone changes for Daylight Saving Time. For example, a call scheduled for 10:00 AM GMT lands at 3:30 PM IST the same day — no date shift to worry about, which makes GMT/IST one of the easier pairs to plan around.
This pairing comes up most for coordination between the UK/Ireland and India: London-Mumbai or London-Bangalore office calls, checking UK broadcast times for cricket or football fixtures, and families or students keeping in touch between the two countries. Because GMT is also the winter clock for several West African nations, it's used for that overlap too, though IST itself never shifts.
What is the time difference between GMT and IST? IST is 5 hours and 30 minutes ahead of GMT throughout the year, since neither zone observes Daylight Saving Time.
Does GMT to IST conversion change with Daylight Saving Time? No. GMT does not observe DST, and IST does not observe DST either, so the 5:30 offset stays constant every day of the year.
Is GMT the same as UTC? GMT and UTC share the same current time in practice and are commonly used interchangeably for time zone conversion, though UTC is the modern scientific standard.
What is 9 AM GMT in IST? 9:00 AM GMT is 2:30 PM IST the same day.
Is this GMT to IST converter free to use? Yes, it's completely free, works instantly in your browser, and does not require any sign-up.
Note: This converter uses your browser's built-in time zone database and automatically accounts for Daylight Saving Time changes for the selected date, so results stay accurate year-round.