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Time Zone Call Planner

Find practical overlap windows for two cities with UTC offsets, availability ranges, duration checks, presets, warnings, copy, and clear actions.

Updated 2026-06-16

Result summary

Ready to find overlap windows.

Time difference appears after the check.

     
       
     
     
     
     
      
     
    How to use this tool
     
       
    1. Paste or type your input into the tool.
      2.  
    2. Choose the action or option that matches your task.
      3.  
    3. Review the output before copying it into another app.
      4.  
     
    Notes
     
    Compare two UTC offsets, awake-hour windows, and call duration so a remote family, study, or team call has a fair time slot.
     
    Inputs are processed in the browser for this static MVP. Avoid pasting secrets into any online tool unless you understand the environment.
     
      
    FAQ
    Does this know daylight saving rules automatically?
    No. Enter the current UTC offsets yourself and confirm the date in a calendar before sending an invite.
    Can it plan recurring calls?
    It can find candidate windows, but recurring calls should rotate inconvenient times when the time difference is large.
    What if there is no overlap?
    Shorten the meeting, widen one side of the availability window, or move the decision to an async message.
     
     
    Related Pages
     
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