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GMT to IST Time Converter

Type a time in GMT to see it in IST, with daylight saving handled for the date you pick. Every hour of the day is in the table below, and the meeting planner shows when both working days overlap.

v2026.10.10

In India

2:30 pmIST

9:00 am GMT on Wed 14 Jan 2026 is 2:30 pm IST the same day. India is 5 h 30 min ahead of GMT.

GMT (GMT)0 · 6 · 12 · 18
India (IST)
9 am–5 pmBoth at work: 2.5 h
Date there
Wednesday 14 January 2026
Offsets
GMT UTC+0 · IST UTC+5:30
Date used
Example day: Wednesday 14 January 2026
How this works: Method, 3 sources,

How this works

Method

Here GMT means Greenwich Mean Time, fixed at UTC+0 (the UK itself moves to BST, UTC+1, in summer); IST means India Standard Time, UTC+5:30 all year. So IST is 5 h 30 min ahead of GMT all year. Two 9-to-5 working days overlap by 2 h 30 min all year. Full method

Sources

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Changes

  • 15 more conversion pages (IST to CST, BST to IST, SGT, GST, JST, MST and more); each conversion page shows all 24 hours with working hours shaded, and its best meeting times.
  • The pickers find about a thousand more cities, states and countries (Seattle, Bangalore, Texas), and each conversion page names the next clock change on either side.
  • The converter opens on the time now, live, with a Now choice beside the time, and the main converter starts from your own time zone.
  • First published, with a world clock, pages for the time in 31 places and 15 common conversions such as PST to IST.

Every change on What’s new

How we make toolsReport a mistake

How to convert GMT to IST

Here GMT means Greenwich Mean Time, fixed at UTC+0 (the UK itself moves to BST, UTC+1, in summer); IST means India Standard Time, UTC+5:30 all year. So IST is 5 h 30 min ahead of GMT all year. Two 9-to-5 working days overlap by 2 h 30 min all year.

GMT to IST is searched by people linking Britain and India: families, students in UK universities, and companies with offices in London and Bengaluru. Fixed GMT is 5 h 30 min behind India all year, which is the number this page uses. Britain’s own clocks are a different matter, because the UK is on GMT only in winter.

From the last Sunday in March to the last Sunday in October London runs on BST, an hour ahead of GMT, so London is then 4 h 30 min behind India rather than 5 h 30 min. A meeting fixed at 10:00 am London time therefore lands at 3:30 pm in India in winter but 2:30 pm in summer. If someone in the UK writes “GMT” in June, they almost always mean the clock on their wall, which is BST; ask, or convert from London time instead. The London and India city pages show both clocks live.

Rule of thumb: Add 5½ hours to GMT for Indian time; from a London clock in summer (BST), add 4½.

IST = GMT +5:30

  • The UK is on Greenwich Mean Time only after the clocks go back on the last Sunday in October; from the last Sunday in March it is on British Summer Time, one hour ahead. Source: GOV.UK, When do the clocks change?.

Meeting planner: best times for GMT and IST

The easiest meetings fall where both working days overlap, shaded dark on the bar. The lighter shading is still between 7 am and 9 pm on both clocks, so one side starts early or stays late.

All year: GMT and IST

  • Both at work: 9:00 am to 11:30 am GMT is 2:30 pm to 5:00 pm IST (2 h 30 min).
  • Early or late for one side: 7:00 am to 9:00 am GMT is 12:30 pm to 2:30 pm IST (2 h); 11:30 am to 3:30 pm GMT is 5:00 pm to 9:00 pm IST (4 h).

Both between 9 am and 5 pmBoth between 7 am and 9 pm

GMT to IST time conversion table

Every hour of the GMT day and the time in IST. The difference is the same all year.

Every hour of the GMT day and the time in IST. The difference is the same all year.
GMT timeIST time
12:00 am5:30 am
1:00 am6:30 am
2:00 am7:30 am
3:00 am8:30 am
4:00 am9:30 am
5:00 am10:30 am
6:00 am11:30 am
7:00 am12:30 pm
8:00 am1:30 pm
9:00 am2:30 pm
10:00 am3:30 pm
11:00 am4:30 pm
12:00 pm5:30 pm
1:00 pm6:30 pm
2:00 pm7:30 pm
3:00 pm8:30 pm
4:00 pm9:30 pm
5:00 pm10:30 pm
6:00 pm11:30 pm
7:00 pm12:30 am (next day)
8:00 pm1:30 am (next day)
9:00 pm2:30 am (next day)
10:00 pm3:30 am (next day)
11:00 pm4:30 am (next day)

Shaded: 9 am to 5 pm on that clock. Where a row is shaded on both sides, both are at work.

Frequently Asked Questions

What is 9 am GMT in IST?

9:00 am GMT is 2:30 pm IST, all year round.

Is India 4½ or 5½ hours ahead of the UK?

India is 5 h 30 min ahead of the UK in winter, when Britain is on GMT, and 4 h 30 min ahead from late March to late October, when Britain is on BST. Against fixed GMT it is always 5 h 30 min.

What time is 3 pm GMT in India?

It is 8:30 pm IST, on the same day, all year. If the 3:00 pm is really a London summer time (BST), it is 7:30 pm in India.