Timezone Tool

Business Hours Overlap Calculator

When two teams both say they are free during business hours, that still does not mean those hours overlap. This calculator shows the shared window immediately.

Live Tool

Use Business Hours Overlap Calculator

Find the shared working window between two timezones without doing the math by hand.

Best for

Support handoffs, recurring standups, and deciding whether a workshop should be live or async.

Real-world use

A two-hour overlap can be enough for decisions. It is usually not enough for six back-to-back meetings.

Practical tip

If the shared window is thin, reserve it for decisions and leave status updates async.