Online Tool Store
Meeting Planner
Add teammates in different time zones with their working hours and see a 24-hour overlap grid highlighting the best shared meeting time. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown - replace with your own team.
Overlap across all 24 UTC hours
Darker cells mean more team members are inside their working hours at that UTC hour.
How the meeting planner works
- Add each teammate's name, time zone, and their typical working-hours window.
- The tool converts all 24 UTC hours into each teammate's local hour and checks it against their window.
- The grid highlights how many teammates are available at every UTC hour, and calls out the single best hour.
The method
For every hour of the UTC day, the planner formats that instant in each teammate's IANA time zone to get their local hour, then checks whether that hour falls inside their configured start-to-end window. Summing how many teammates match at each UTC hour produces an overlap count you can scan across the full day.
overlap(hour) = count of teammates where localHour(hour, zone) is inside [start, end)
FAQ
How does the planner know each teammate's local time?
It uses your browser's built-in time zone database (Intl.DateTimeFormat) to convert every UTC hour into each teammate's local hour, including current daylight-saving offsets.
Can I plan for teams larger than three people?
Yes. Use "Add team member" to add as many rows as you need, and remove any row you no longer need.
What does a darker cell in the grid mean?
Each cell represents one UTC hour. The darker the shade, the more teammates have that hour inside their configured working window.
Does it handle working hours that cross midnight?
Yes. If a start hour is later than the end hour, the tool treats the window as spanning overnight (e.g. 22:00 to 06:00).
Is my team's schedule sent anywhere?
No. Every calculation runs locally in your browser tab. Nothing about your team or their hours is uploaded to a server.
How we compare
| Feature | Online Tool Store | World Time Buddy | Google Calendar |
|---|---|---|---|
| Visual overlap grid across all 24 UTC hours | ✓ | ✓ | ✗ |
| No sign-up or calendar connection required | ✓ | ✓ | ✗ |
| Team schedule stays in this browser tab | ✓ | Not stated | ✗ |
If you just need one quick shared meeting hour without creating an account, Meeting Planner gets you there in seconds.