Time Zone Converter
Convert a date and time between time zones with daylight saving handled automatically, using your browser's time zone database.
Pick a date and time.
Daylight saving is handled for you
The converter uses the IANA time zone database built into your browser, so a meeting at 9:00 in New York is shown at the right hour in London whether or not either place is on summer time that day.
Clocks change on different dates in North America and Europe, so for a few weeks each spring and autumn the gap between them is an hour different from usual — always convert the actual date.
UTC and GMT
UTC is the world reference time and does not change for daylight saving. The UK uses GMT (UTC+0) in winter and BST (UTC+1) in summer.
Frequently asked questions
Does this handle daylight saving time?
Yes, for the date you pick, using your browser's time zone database.
What is the difference between UTC and GMT?
For everyday use they show the same time. UTC is the scientific standard; GMT is also the name of the UK's winter time zone.