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GST to IST Converter

GST to IST, made simple. IST is 1 hour and 30 minutes ahead of GST. Change the time or date in either card and the conversion follows along instantly.

IST is 1 hour 30 min ahead of GST
From
GST

Now in Dubai: 9:54:01 PM GST

To
IST

Now in Kolkata: 11:24:01 PM IST

Jump to:

GST to IST conversion chart

For example, a 9:00 AM GST meeting takes place at 10:30 AM IST. Concretely, when Dubai (GST) and Mumbai (IST) set up a call, iST is 1 hour and 30 minutes ahead of GST.

Gulf Standard Time to India Standard Time conversion chart
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+1 day

This chart uses the fixed GST and IST offsets; the live converter above follows current daylight saving.

Convert GST to IST Time Zone

A quick guide to GST → IST: the time gap, the live clocks, scheduling tips, and how we keep it accurate.

How do I convert GST to IST?

It takes three quick steps:

  1. Click the GST field on the left and pick the time you want to convert.
  2. The matching IST time updates on the right automatically — there’s no button to press.
  3. Need a different day? Click the date field and the result follows, rolling over if it crosses midnight.

GST vs IST: what's the time gap?

IST is 1 hour and 30 minutes ahead of GST. In everyday terms, once you know the time on one side you just add 1 hour 30 min to get the other — so a call between Dubai and Mumbai is always 1 hour 30 min apart.

What's the current time in IST?

Right now the time in India Standard Time (IST) is Monday, June 29, 2026 · 11:24:01 PM. It ticks every second, so you’re always looking at the live IST clock.

And what time is it in GST?

And in Gulf Standard Time (GST), it’s currently Monday, June 29, 2026 · 9:54:01 PM. Compare the two and the 1 hour 30 min gap is easy to see.

What's the best time for a GST–IST call?

For example, a 9:00 AM GST meeting takes place at 10:30 AM IST. The trick is to aim for a slot that lands inside normal working hours on both sides. Once you’ve found a time, hit Share on the converter to copy a link with the time built in — easy to send to a colleague. Juggling three or more zones? The meeting planner highlights the hours that overlap for everyone.

Does daylight saving time change the GST–IST difference?

The labels GST and IST are fixed offsets, so the result on this page is always exact. Neither side changes its clocks for daylight saving, so the difference you see here is the same in summer and winter.

How accurate is this GST to IST conversion?

We don’t guess. GST and IST times are worked out from the official IANA time zone database, the trusted standard that operating systems use worldwide. Because daylight-saving rules and regional offsets do change over time, we track those updates rather than relying on a fixed number — which is exactly where many converters slip up.

Convert GST to other time zones

Convert to IST from other time zones

Frequently asked questions

How many hours ahead of GST is IST?

IST is 1 hour and 30 minutes ahead of GST — a fixed 1 hour and 30 minutes difference, since both are fixed-offset labels.

What time is it in IST when it's 12:00 PM GST?

When it's 12:00 PM (noon) GST, it's 1:30 PM IST.

Do GST or IST use daylight saving time?

Gulf Standard Time (GST) is a fixed offset with no daylight saving; India Standard Time (IST) is a fixed offset with no daylight saving.