Time zone converter
See the time in every city at once and find an hour that works for all.
- 100% free
- No sign-up
- Runs in your browser
World clock
Loading the clock…
Search by city, region or zone name, such as “India” or “Eastern”.
Next: Unix timestamp converter · Online alarm clock · Countdown to a date
Report a problem with this tool
How to use Time zone converter
Add your cities
Your own zone, London, New York and Tokyo are there to start. Search to add any city or zone, and remove the ones you don’t need.
Enter a time
Pick a date and time in one zone to convert it, or leave it empty for a live world clock.
Find a meeting hour
In the hour table, green cells are office hours. Look for a column that’s green for everyone and click it.
Why use Utils365
Daylight saving included
Every zone uses its own summer-time rules for the date you pick, so a time in March or October is still right.
Meeting planner
A 24-hour table shows each zone’s hours side by side, with office hours in green and early or late hours shaded.
Every time zone
Search all the time zones your browser knows, by city or by name, such as “India” or “Pacific”.
Private and offline
It uses your browser’s own time-zone data. Nothing is sent anywhere, and your list of cities is remembered.
Frequently asked questions
What time is 12:00 in London in New York and Tokyo?
In summer, 12:00 in London (UTC+1) is 07:00 in New York (UTC−4) and 20:00 in Tokyo (UTC+9). In winter, London is UTC+0, so it’s 07:00 in New York and 21:00 in Tokyo.
Does it handle daylight saving time?
Yes. The offset for each zone is worked out for the date you enter. The US, Europe and Australia change clocks on different dates, so the gap between them changes for a few weeks each year.
What does UTC+5:30 mean?
The zone is 5 hours 30 minutes ahead of Coordinated Universal Time. India uses UTC+5:30 all year, and Nepal UTC+5:45, so not every zone is a whole number of hours.
How do I find a good meeting time?
Add everyone’s cities and look at the hour table. Choose a column where every row is green (9:00–17:00). Between London and New York, 14:00–17:00 London time usually works.
Why does it say “next day”?
The time in that zone falls on a different date from the zone you entered. 20:00 on Monday in New York is already 09:00 on Tuesday in Tokyo.
Is GMT the same as UTC?
For everyday use, yes: both are UTC+0. London uses GMT in winter and BST (UTC+1) in summer, which is why its offset changes.
Where does the time-zone data come from?
From your browser, which uses the IANA time zone database also used by phones and computers. Keep your browser up to date for the latest rule changes.