Find a time that works for everyone.
Add your cities and set their working hours. Find the overlap, then copy the meeting time.
Free to use. No account. Your saved cities stay yours.
Keep it on your Windows desktopFind a meeting time in four steps
- Add the cities. Type each one in the Add city box. Search works by name, country, abbreviation or UTC offset.
- Open the planner. Select the planner button in the top bar. Each city gets a 24-hour row.
- Set each city’s hours. Click a city’s name to set its working hours and days. Every city starts at 09:00 to 18:00, Monday to Friday.
- Pick an hour. Click an hour inside the outlined overlap. Every clock converts to it, and Copy times puts the result on your clipboard.
How to read the grid
Columns are the source city’s hours
The 24 columns are the hours of the chosen day in the converter’s city. Each row shows what time that is locally.
Three kinds of hour
Blue is working time for the whole hour, dark is night (22:00 to 07:00 local), plain is off hours.
The overlap
Hours where every city is working are outlined, and the top line sums them up. A second block adds “+1 more”; none at all says “No overlap”. When no hour works for everyone, the planner outlines the hours when the most cities are at work and names who is outside their hours, for example “Best: 12:00 to 13:00 (New York), 4 of 5 working”.
Now, and the rest of the week
A thin line marks the current time. The date shortcuts (Today, Tomorrow and the next five days) show the days ahead.
Keyboard
Arrow keys move through hours and cities; Home and End jump to the first and last hour.
Your time zone, your format
Hours follow your 12 or 24-hour setting, and cities keep the labels you gave them.
Working hours and days, per city
Teams don’t all work 9 to 6, Monday to Friday. Each city keeps its own start, end and working days, so an office in Riyadh can work Sunday to Thursday and a support desk in Manila can work nights. Reset puts a city back to the default. The hours are saved with your settings, on your PC.
Night shifts
Set an end time earlier than the start, say 22:00 to 06:00, and the editor notes “Ends the next day”. The whole shift belongs to the day it starts: a shift that starts on Friday evening runs until Saturday morning.
Example: a team in Manila working 22:00 to 06:00, Monday to Friday, and an office in New York on 09:00 to 18:00. The planner shows 8 h overlap · 10:00 to 18:00 (New York), because Manila’s night is New York’s working day.
Worked examples
Real results from the planner. Default hours are 09:00 to 18:00, Monday to Friday.
| Cities and hours | The planner says |
|---|---|
| Lisbon, London and New York, all on 09:00 to 18:00 | 4 h overlap · 14:00 to 18:00 (Lisbon) |
| Add San Francisco, also 09:00 to 18:00 | 1 h overlap · 17:00 to 18:00 (Lisbon) |
| San Francisco on 08:00 to 16:00 instead | 2 h overlap · 16:00 to 18:00 (Lisbon) |
| Tokyo, London and New York | No overlapBest: 17:00 to 18:00 (Tokyo), 2 of 3 working |
| Tokyo and London | 1 h overlap · 17:00 to 18:00 (Tokyo) |
| New York, plus Manila on 22:00 to 06:00 | 8 h overlap · 10:00 to 18:00 (New York) |
| London, plus Riyadh on 09:00 to 17:00, Sunday to Thursday, on a Thursday | 6 h overlap · 09:00 to 15:00 (London) |
| The same two cities on a Friday | No overlap |
Wednesday 23 September 2026 unless noted (Thursday 24 and Friday 25 September for Riyadh). Default hours unless noted. The source city is in brackets. With no shared hour, the Best line shows the hours when the most cities work; in the Friday row only London works, so there is no Best line.
When the clocks change
Clocks change on different dates around the world, and the planner uses each day’s own rules. London and New York share 4 working hours on 21 October 2026, but 5 on 28 October, because Europe has already turned its clocks back and the US waits until 1 November. The same thing happens for two weeks in March. Worth a look before you set up a recurring meeting.
Team presets
Each link opens the planner above with those cities. Overlap uses the default hours, 09:00 to 18:00, Monday to Friday, on Wednesday 14 October 2026. Change any city’s hours in the planner.
| Team | Shared working time |
|---|---|
| US East + UK + Europe New York, London, Berlin | 3 h · 09:00 to 12:00 (New York) |
| UK + Europe + India London, Berlin, Mumbai | 4 h 30 min · 09:00 to 13:30 (London) |
| US West + India Los Angeles, Mumbai | No shared hour; at most 1 of 2 cities working |
| UK + Singapore + Japan London, Singapore, Tokyo | 1 h · 09:00 to 10:00 (London) |
| Americas + Asia-Pacific New York, São Paulo, Singapore, Sydney | No shared hour; at most 2 of 4 cities working |
| Brazil + Portugal + Spain São Paulo, Lisbon, Madrid | 4 h · 09:00 to 13:00 (São Paulo) |
When no hour works for everyone
- Use the hours when the most people are working, and say who is outside them. The planner’s Best line shows this.
- Rotate the early or late slot between regions instead of always asking the same city.
- See whether one office can shift its day, for example an 08:00 start. Change that city’s hours and the overlap updates.
- Not everything needs a live call. A shared document or recorded update can cover the region that would be asleep.
Questions
How do I find a meeting time across 4 or more time zones?
Add every city, open the planner, and look for the outlined overlap. If there is none, the Best line shows the hours when the most cities are working.
Does it handle daylight saving time?
Yes. Each day uses that day’s rules from the IANA time zone database, so the overlap can change in the weeks when regions change clocks on different dates.
Can I send the result to my team?
Share clocks copies a link with the cities and the selected time. Copy times in the app puts every converted time on your clipboard.
Is it free?
Yes. There is no account, and your cities are saved in your browser.
More about Open World Clock
Put the world on your desktop
Completely free for Windows 10 and 11. Open source, no account, no ads, no telemetry.
Free for Windows 10 and 11, x64, about 90 MB. It isn’t code-signed yet, so SmartScreen may warn you the first time (what to do).