Timezone Converter
This time zone converter converts a date and time from one time zone to another, with daylight saving time applied automatically, and shows the same moment on a world clock for major cities.
About this tool
This time zone converter converts a date and time from one time zone to another, with daylight saving time applied automatically, and shows the same moment on a world clock for major cities.
How to use it
- Set the date and time you want to convert.
- Choose the time zone it is in (your local zone is preselected when available).
- Choose the time zone to convert to.
- Read the converted time and the world clock.
Good to know
- Conversions use the browser's built-in Intl API and IANA time zone database, so daylight saving rules are applied for the chosen date.
- 28 time zones are included, from Honolulu and Los Angeles to London, Helsinki, Dubai, Kolkata, Tokyo, Sydney and Auckland.
- Some zones are not whole hours from UTC: India (Asia/Kolkata) is UTC+5:30.
- The world clock shows the same moment in 16 major zones.
Runs entirely in your browser — nothing you enter is uploaded or stored.
Frequently asked questions
How do I convert time between time zones?
Enter the date and time, choose the source time zone and the target time zone. The converted time appears instantly.
Does it adjust for daylight saving time?
Yes. It uses the official time zone rules, so the result reflects whether daylight saving is in effect on the date you choose.
What is the difference between UTC and GMT?
For everyday use they are the same time. UTC is the precise atomic time standard; GMT is the time zone used in the UK in winter.
Why do some time zones have half-hour offsets?
Some countries chose offsets that fit their geography better, such as India at UTC+5:30.