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GMT to UTC: convert Greenwich Mean Time to Coordinated Universal Time

UTC is the same time as GMT all year.

Neither clock changes for daylight saving, so the gap never moves.

One instant, two local clocks

Drag one day across both zones

Shared instant12:00 UTC
Difference nowSame clock at this instant
GMTGreenwich Mean Time
12:00Thu, Jan 15
UTCCoordinated Universal Time
12:00Thu, Jan 15
Approximate daylight 09:00 to 17:00 Selected local time

Both lanes show the same instant. Local dates, daylight, and offsets come from each IANA zone on the selected date, so daylight saving changes are included.

Right now

GMT: Greenwich Mean Time

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UTC: Coordinated Universal Time

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Local times come from your browser's IANA time zone data.

GMT to UTC hour by hour

GMTUTC
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Scheduling a call between GMT and UTC

Standard business hours (9:00 AM to 5:00 PM) overlap from 9:00 AM to 5:00 PM in GMT, which is 9:00 AM to 5:00 PM in UTC.

UTC to GMT (reverse)Open the full converter

More GMT conversions

Offsets are computed from the IANA time zone database for January 15 and July 15 of the current year. GMT here means Greenwich Mean Time (fixed UTC+0 offset, all year); UTC means Coordinated Universal Time (the world time standard).