Global Work Hours Overlap Finder

Identify the overlap in working hours across distributed teams by entering their converted UTC schedules.

Convert local start time to UTC hour (e.g., 09:00 ET = 13.0).
UTC hour when Team A stops working.
Convert Team B start to UTC hours.
UTC hour when Team B stops working.
Optional third region start time in UTC hours. Values above 24 represent next-day hours.
Optional third region end time in UTC hours. Values above 24 represent next-day hours.

Examples

  • Team A 13–21 UTC (NYC), Team B 08–16 UTC (London) ⇒ Result: 3.00 hours overlap
  • Team A 22–30 UTC, Team B 24–32 UTC, Team C 25–33 UTC ⇒ Result: 5.00 hours overlap

FAQ

How do I handle teams working past midnight?

Convert the end time to a value greater than the start by adding 24 hours before converting to UTC. For example, 10:00 next day becomes 34.0 UTC hours.

Can I include more than three teams?

Calculate overlap for three primary hubs, then repeat with additional teams or use the smallest overlap as your global availability.

What if there is no overlap?

The calculator returns 0 hours. Consider staggered shifts, flex hours, or asynchronous standups when overlap is zero.

Additional Information

  • Result is the width of the common window in hours.
  • Convert local times to UTC hours with decimal minutes (e.g., 17:30 = 17.5).
  • If shifts cross midnight, express end times beyond 24 or adjust start times accordingly before conversion.
  • Use the output to schedule recurring meetings or decide on asynchronous handoff protocols.

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