Convert GMT / UK time to India Standard Time, with daylight saving handled automatically.
Home row (top) sets the day. DST handled automatically via Intl.
Working hours (9–17)DaytimeNightNowSelected
GMT to IST — London to India time
India Standard Time (IST) is UTC+5:30 and never changes. The UK is GMT (UTC+0) in winter and BST (UTC+1) in summer, so India is 5.5 hours ahead in winter and 4.5 hours ahead in summer.
Period
Difference
Winter (UK on GMT)
India is 5.5 hours ahead
Summer (UK on BST)
India is 4.5 hours ahead
The UK and India share a good afternoon overlap: UK morning (9 AM–1 PM) is India afternoon and early evening (about 2–6:30 PM IST).
Frequently asked questions
What is the time difference between GMT and IST?
India is 5.5 hours ahead of GMT. When the UK is on British Summer Time (BST), India is 4.5 hours ahead. For example, 12:00 noon in London is 5:30 PM in India in winter, or 4:30 PM in summer.
What time is 9 AM in the UK in India?
9:00 AM in London is 2:30 PM in India during winter (GMT), or 1:30 PM during summer (BST).
Does India observe daylight saving?
No. India stays on IST (UTC+5:30) all year; only the UK side shifts between GMT and BST.