Time Zone Converter
See the time in several cities at once and spot a slot that works for everyone. Green is working hours (9am–5pm), yellow is possible, and grey is outside reasonable hours.
Pick a time
The same moment around the world
- New York–
- London–
- Tokyo–
- Sydney–
Meeting planner
Each box is one hour of the day in New York. Green is working hours (9–17), amber is possible (7–9 and 17–20), grey is outside reasonable hours.
| Hour in New York | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| New York | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| London | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tokyo | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sydney | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Good to know: Clocks change on different dates in the US and Europe, so the gap between them can shift by an hour for a few weeks each year.
About this tool
Compare current times across world time zones — essential for scheduling international meetings, calls, and travel.
Formula
UTC ± offset. Add or subtract the difference between two zone offsets to convert.
Reference values
- UTC+0 = London (GMT)
- UTC-5 = New York (EST)
- UTC+9 = Tokyo (JST)
Questions people ask
How do I find a good meeting time across time zones?
Add each city and look for the green overlap. Share the time in each person's own zone when you invite them.
Does the tool handle daylight saving time?
Yes. Times use each city's current rules for the date shown.
Why is the gap between two cities not always the same?
Places switch clocks on different dates, and some never switch.
Related tools
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it.
Spotted a mistake? Tell us and we'll check it. How we check our calculators