GMT to UTC Converter – Convert GMT to UTC

Free GMT to UTC Time Zone Converter - Convert GMT to UTC Instantly

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Select your time and date, then see the conversion instantly
When it's --:-- in ---, it's:
--:----- (---)
--- is --- hrs behind/ahead of ---
---

Quick Reference: UTC is 0 hours ahead of GMT.

Common GMT to UTC Conversions:
00:00 GMT = 00:00 UTC | 06:00 GMT = 06:00 UTC | 09:00 GMT = 09:00 UTC | 12:00 GMT = 12:00 UTC | 15:00 GMT = 15:00 UTC | 18:00 GMT = 18:00 UTC

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CURRENT LOCAL TIME
--:-- --
Tuesday, July 8, 2025
12:00 PM
Your Local Time

Common Questions About GMT to UTC Conversion

What is the time difference between GMT and UTC?

UTC is 0 hours behind GMT.

00:00 GMT 00:00 UTC
09:00 GMT 09:00 UTC
12:00 GMT 12:00 UTC
20:00 GMT 20:00 UTC

Is UTC always 0 hours behind?

Yes, both timezones maintain constant offsets year-round.

Neither GMT nor UTC observe Daylight Saving Time, so the difference remains 0 hours.

What is the best time for meetings between GMT and UTC?

Optimal window: 09:00-16:00 GMT = 09:00-16:00 UTC

12:00 GMT
= 12:00 UTC
14:00 GMT
= 14:00 UTC

Works for UK/GMT business hours and UTC business hours.

GMT to UTC Quick Conversion Chart

00:00 GMT 00:00 UTC
09:00 GMT 09:00 UTC
12:00 GMT 12:00 UTC
14:00 GMT 14:00 UTC
20:00 GMT 20:00 UTC
22:00 GMT 22:00 UTC

Frequently Asked Questions

To convert GMT to UTC, use our free time zone converter above. Simply select your time and date to see the instant conversion. Our tool automatically accounts for Daylight Saving Time changes in both time zones.

The time difference between GMT and UTC varies depending on whether Daylight Saving Time is in effect. Use our converter above for the most accurate, real-time time difference.

The best meeting time between United Kingdom (GMT) and Global (UTC) depends on business hours in both locations. Use our advanced meeting planner below to find overlapping work hours that suit both time zones.

United Kingdom observes Daylight Saving Time, switching between GMT and BST. This affects the time difference with UTC during DST transitions.

Major cities in the GMT timezone include London and other cities in United Kingdom. These cities switch between GMT and BST for Daylight Saving Time.

Major cities in the UTC timezone include Universal and other cities in Global. This timezone does not observe Daylight Saving Time.

For calls between United Kingdom (GMT) and Global (UTC), use our converter to find mutually convenient times. Always specify both local times in meeting invites to avoid confusion, and account for Daylight Saving Time changes.

Need more help? Check our complete FAQ section.

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