GMT to UTC Time Converter
Greenwich Mean Time (GMT) and Coordinated Universal Time (UTC) are currently on the same time. GMT is UTC+0 and UTC is UTC+0. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
GMT and UTC keep the same clock time, so anything inside normal working hours suits both sides.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: GMT to UTC
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
GMT and UTC are fixed offsets, so the difference between them never changes.
GMT is UTC+0 and never shifts. The UK is on GMT in winter but moves to BST (UTC+1) from late March to late October.
UTC is the global time standard. It has no daylight saving and never shifts.
Frequently Asked Questions
How many hours ahead is UTC compared to GMT?
UTC and GMT are currently on the same time. GMT and UTC are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in GMT in UTC?
9:00 AM in GMT is 9:00 AM in UTC.
What is the best time for a call between GMT and UTC?
GMT and UTC keep the same clock time, so anything inside normal working hours suits both sides.