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

Shift Work Schedule Calculator

Calculate the midpoint of a worker's shift in company HQ time, so remote and global teams can align check-ins and reporting windows. Helpful for managers scheduling across multiple time zones.

Shift Start Time (h)

Shift Duration (hours)

Worker's Time Zone

Company HQ Time Zone

Fill in the required fields to see your result.

Key differences

	Global Work Shift Overlap Calculator	Shift Work Schedule Calculator
Category	Time Zones	Time Zones
Inputs required	6	4
Result	Overlapping Work Hours (hours)	Shift Midpoint in Company Time (h)
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.	Calculate the midpoint of a worker's shift in company HQ time, so remote and global teams can align check-ins and reporting windows. Helpful for managers scheduling across multiple time zones.