Bring the team’s time zones
Use IANA names such as Europe/London or America/New_York. Add up to eight, then choose a base zone and local start time.
Everyday work / Made for the task at hand
Different clocks.
A shared good hour.
Compare 24 hourly meeting candidates across up to eight IANA time zones. Highlight shared working hours using date-specific daylight saving rules and export CSV.
Your time zone meeting overlap planner workspace
02 / SOURCE
03 / RESULT
Ready when you are24-hour planning CSV
A little less work starts here.
Add your source, or try the example, then choose “Find shared hours”.
Results are temporary. Download anything you want to keep.
Your original data is never changed.
◇ Local processing↧ Real, downloadable results⌁ No account required
A practical little workflow
From “I need to…” to done.
Define shared working hours
The same start/end window applies to every zone. The planner checks 24 hourly instants from your starting point.
Choose a considerate slot
Review local dates as well as hours. A Yes marker means every zone is within the window at that instant, not for the entire meeting.
Before you get started
Useful answers.
Clear boundaries.
Built for a focused job.
Review important results before use.
Does it handle daylight saving?
It uses the browser’s IANA time-zone data for the selected date. Ambiguous or nonexistent base times around clock changes are rejected; choose a clear time.
Are weekends and holidays excluded?
No. This version compares hours only. Check local workdays, holidays, meeting duration and individual availability before scheduling.
Can everyone have different working hours?
Not in this version. All zones share the chosen start/end hours, and overnight windows are not supported. Daymark can create a calendar file after you choose a time.
What happens to my data?
Working text and local files are processed in this browser tab and are not sent to a server or an AI service. Reloading clears this workspace. Optional analytics and feedback have separate privacy controls; see Privacy below.