Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Global Work Shift Overlap Calculator

Calculate how many hours two globally distributed teams actually share during their working days by converting both shifts to UTC and intersecting them. Use it to plan handoffs, standups, or pair-programming windows between offices in different cities.

Team 1 Time Zone

Team 2 Time Zone

Team 1 Work Start (:00)

Team 1 Work End (:00)

Team 2 Work Start (:00)

Team 2 Work End (:00)

Fill in the required fields to see your result.

Time Zones

World Meeting Scheduler

Find the largest working-hours window two cities share by subtracting the time-zone offset from each side of their overlapping business day. Use it when booking a recurring call between offices in different countries.

First Time Zone

Second Time Zone

Earliest Working Hour (:00)

Latest Working Hour (:00)

Meeting Duration (hours)

Fill in the required fields to see your result.

Key differences

	Global Work Shift Overlap Calculator	World Meeting Scheduler
Category	Time Zones	Time Zones
Inputs required	6	5
Result	Overlapping Work Hours (hours)	Optimal Meeting Hours Available (hours)
What it does	Calculate how many hours two globally distributed teams actually share during their working days by converting both shifts to UTC and intersecting them. Use it to plan handoffs, standups, or pair-programming windows between offices in different cities.	Find the largest working-hours window two cities share by subtracting the time-zone offset from each side of their overlapping business day. Use it when booking a recurring call between offices in different countries.