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GST to IST Time Converter

Type a time in GST 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

10:30 amIST

9:00 am GST on Wed 14 Jan 2026 is 10:30 am IST the same day. India is 1 h 30 min ahead of Dubai.

Dubai (GST)0 · 6 · 12 · 18
India (IST)
9 am–5 pmBoth at work: 6.5 h
Date there
Wednesday 14 January 2026
Offsets
GST UTC+4 · IST UTC+5:30
Date used
Example day: Wednesday 14 January 2026
How this works: Method, 3 sources,

How this works

Method

Here GST means Gulf Standard Time, UTC+4 all year; IST means India Standard Time, UTC+5:30 all year. So IST is 1 h 30 min ahead of GST all year. Two 9-to-5 working days overlap by 6 h 30 min all year. Full method

Sources

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

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How to convert GST to IST

Here GST means Gulf Standard Time, UTC+4 all year; IST means India Standard Time, UTC+5:30 all year. So IST is 1 h 30 min ahead of GST all year. Two 9-to-5 working days overlap by 6 h 30 min all year.

Gulf Standard Time is the clock of the United Arab Emirates and Oman: Dubai, Abu Dhabi, Sharjah and Muscat. A large Indian community lives and works in the Gulf, so GST to IST is used every day to call home, to plan money transfers before a bank cut-off in India, and to set meetings between Dubai offices and Indian teams. The gap is small, so the working days overlap almost completely.

Neither the UAE nor India uses daylight saving time, so India is 1 h 30 min ahead of Dubai on every date. Be careful with the letters: in India, GST more often means the Goods and Services Tax, and some places use GST for other zones, so writing “Dubai time” or “UTC+4” avoids confusion. Saudi Arabia, Qatar, Kuwait and Bahrain are on UTC+3, one hour behind the UAE and 2 h 30 min behind India.

Rule of thumb: Add 1½ hours to Gulf time: 9:00 am in Dubai is 10:30 am in India, and 3:00 pm there is 4:30 pm here.

IST = GST +1:30

Meeting planner: best times for GST 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: GST and IST

  • Both at work: 9:00 am to 3:30 pm GST is 10:30 am to 5:00 pm IST (6 h 30 min).
  • Early or late for one side: 7:00 am to 9:00 am GST is 8:30 am to 10:30 am IST (2 h); 3:30 pm to 7:30 pm GST is 5:00 pm to 9:00 pm IST (4 h).

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

GST to IST time conversion table

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

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

9:00 am GST is 10:30 am IST, all year round.

What time is 3 pm Dubai time in India?

3:00 pm in Dubai is 4:30 pm in India, the same day, in every season.

Does Dubai change its clocks?

No. The UAE stays on UTC+4 all year, and India on UTC+5:30, so the difference is always 1 h 30 min.