Find the overlap, protect the rest for async
On a distributed team, shared online hours are a scarce resource. If you scatter meetings across the day, people in less-overlapping zones end up permanently blocked or stuck in awkward late-night calls. The fix is to find the genuine overlap window, reserve it for the handful of interactions that truly need real time, and move everything else to asynchronous communication.
This tool converts each teammate's local working hours into UTC and highlights the hours when everyone is available at once. Add your team members below and the overlap bar updates instantly. If the overlap is small — or zero — that's a strong signal to lean even harder on written updates, recorded video, and decision documents rather than live meetings.
How to use it
- Add each teammate with their UTC offset and their local working start and end hours.
- The 24-hour bar highlights the UTC hours when everyone is working at the same time.
- Read the summary to see the overlap window and how many shared hours you have.
- Schedule real-time meetings only inside the overlap; handle the rest async.
- Your team list is saved in your browser for next time.
Want the thinking behind this tool? Read Async Communication Guide for Remote Teams for the full framework and examples.
Frequently asked questions
How do I find overlapping working hours across time zones?
Convert each person's local working hours into a common reference like UTC, then look for the hours that fall inside everyone's window at once. This tool does that automatically: you enter each teammate's UTC offset and working hours, and it highlights the shared hours when the whole team is online simultaneously.
What if my team has little or no overlap?
Little or no overlap is common on globally distributed teams and is a strong reason to work asynchronously. Instead of forcing everyone into an inconvenient call, rely on written updates, recorded walkthroughs, and decision documents with comment deadlines, and reserve any rare live meeting for the small overlap you do have.
Is my team's data saved or shared?
Your team list is stored only in your own browser using local storage, and nothing is uploaded or shared with anyone. The tool runs entirely in your browser and works offline. Clearing your browser data or switching devices will remove the saved list.