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GMT to GST Time Converter

Use this GMT to GST time converter to compare United Kingdom and UAE and Gulf time instantly. GST is 4 hours ahead of GMT, so 9:00 AM GMT becomes 1:00 PM GST and 5:00 PM GMT becomes 9:00 PM GST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.

GMT Greenwich Mean Time
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GST Gulf Standard Time
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Select a time to convert

GMT to GST Quick Facts

Use this GMT to GST converter to compare United Kingdom and UAE and Gulf time, check the 4 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM GMT / 1:00 PM GST.

Time Difference
Gulf Standard Time is 4 hours ahead of Greenwich Mean Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 9:00 AM GMT and 1:00 PM GST.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert GMT to GST

Converting between Greenwich Mean Time and Gulf Standard Time means accounting for a 4 hours gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your GMT Time

Pick the date and time in Greenwich Mean Time (UTC +0) that you want to convert. Hit "Now" to load the current GMT time instantly, or use "+1h" to step forward and compare.

Read the GST Result

The equivalent Gulf Standard Time (UTC +4) time appears immediately. Since GST is 4 hours ahead of GMT, most daytime conversions stay on the same calendar day.

Copy or Fine-Tune

Click "Copy Time" to grab the GST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.

Why Choose Our GMT to GST Converter

Align GMT–GST Meetings Instantly

When someone in Universal suggests 9:00 AM GMT, that's 1:00 PM GST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.

Spot Date-Line Shifts at a Glance

Late-night GMT times can land on a different date in GST because of the 4 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.

Handles DST Transitions Automatically

Daylight Saving adjustments can widen or narrow the GMT–GST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.

Never Miss a GMT-Timed Event

Product launches, sports matches, and webinars are often announced in GMT. Convert the event time to GST so you know exactly when to tune in — with a 4 hours difference, a morning event in Universal falls during work hours in UAE.

GMT to GST Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Greenwich Mean Time to Gulf Standard Time full day schedule

12:00 AM
GMT
4:00 AM
GST
1:00 AM
GMT
5:00 AM
GST
2:00 AM
GMT
6:00 AM
GST
3:00 AM
GMT
7:00 AM
GST
4:00 AM
GMT
8:00 AM
GST
5:00 AM
GMT
9:00 AM
GST
6:00 AM
GMT
10:00 AM
GST
7:00 AM
GMT
11:00 AM
GST
8:00 AM
GMT
12:00 PM
GST
9:00 AM
GMT
1:00 PM
GST
10:00 AM
GMT
2:00 PM
GST
11:00 AM
GMT
3:00 PM
GST
12:00 PM
GMT
4:00 PM
GST
1:00 PM
GMT
5:00 PM
GST
2:00 PM
GMT
6:00 PM
GST
3:00 PM
GMT
7:00 PM
GST
4:00 PM
GMT
8:00 PM
GST
5:00 PM
GMT
9:00 PM
GST
6:00 PM
GMT
10:00 PM
GST
7:00 PM
GMT
11:00 PM
GST
8:00 PM
GMT
12:00 AM
GST
(next day)
9:00 PM
GMT
1:00 AM
GST
(next day)
10:00 PM
GMT
2:00 AM
GST
(next day)
11:00 PM
GMT
3:00 AM
GST
(next day)
Reviewed by iFormat Time Tools Team Last updated

Timezone offsets and DST rules verified against the IANA Time Zone Database. Conversion math and business-hour overlap windows double-checked against real-world scheduling scenarios.

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GMT to GST FAQ

Quick answers about daylight saving time, date changes, business-hour overlap, and the most common scheduling questions between Greenwich Mean Time and Gulf Standard Time.

What is the time difference between GMT and GST?

GST is 4 hours ahead of GMT. GMT is UTC +0:00 and GST is UTC +4:00 relative to UTC. Neither GMT nor GST observes daylight saving time, so the 4 hours gap stays constant all year. That makes scheduling between them predictable.

When can GMT and GST have business-hour overlap?

Aim for 09:00–13:00 GMT, which is 13:00–17:00 GST. Both sides stay inside standard business hours.

Does GMT or GST observe daylight saving time?

Neither GMT nor GST observes daylight saving time, so the 4 hours gap stays constant all year. That makes scheduling between them predictable.

How do I quickly convert GMT to GST?

To convert GMT to GST, add 4 hours to the GMT time. Example: if it's 10:00 AM GMT, it's 14:00 GST that day. The live converter at the top of this page handles DST automatically.