Time Zone Converter
Find out what time it is anywhere and schedule meetings without time zone mix-ups.
- Never leaves your device
- No sign-up
Convert to
Quick answer: To convert time zones, pick the date, time and source time zone: the list shows the matching time in each city, with its UTC offset and a note when it falls on the next or previous day. Add any time zone in the world.
How to do it in 3 steps
- 1Pick the date, time and source time zone.
- 2See the time in the other cities.
- 3Add or remove time zones.
Why use Pronto Arquivo
Automatic daylight saving time
Uses your browser’s own time zone database, always up to date.
Any city
More than 400 time zones.
Next day
Flags when the time falls on another day.
All US zones
Eastern, Central, Mountain and Pacific, plus Alaska and Hawaii.
Guides
International meetings
Convert from the organizer’s time zone and send each attendee the time already converted.
Frequently asked questions
What time is it in London right now?
Tap Now: London is in the list.
How many hours ahead of New York is London?
Usually 5 hours. For a few weeks in March and in late October or early November it’s 4, because the US and the UK change their clocks on different dates.
When does daylight saving time start in the US?
On the second Sunday in March, and it ends on the first Sunday in November; most of Arizona and Hawaii don’t observe it. The tool applies the rules automatically.
What are the US time zones?
The main ones are Eastern (UTC−5), Central (UTC−6), Mountain (UTC−7) and Pacific (UTC−8), plus Alaska (UTC−9) and Hawaii (UTC−10), one hour less behind UTC during daylight saving time.
