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

Shift Work Sleep Calculator

Calculate when you should go to sleep to get 8 hours of rest before your shift, accounting for commute time. Essential for night-shift and rotating-schedule workers.

Shift Start Time (hours (24h format))

Commute Time (hours)

Fill in the required fields to see your result.

Sleep

Shift Work Sleep Calculator

Plan your sleep window around rotating or night shifts by accounting for shift times, commute, and adjustment buffers. Use it when your schedule changes to find the exact bedtime that protects your minimum sleep hours.

Shift Type

Commute Time (minutes)

Required Sleep (hours)

Fill in the required fields to see your result.

Key differences

	Shift Work Sleep Calculator	Shift Work Sleep Calculator
Category	Sleep	Sleep
Inputs required	2	3
Result	Recommended Sleep Start (hours)	Total Recovery Time Needed (minutes)
What it does	Calculate when you should go to sleep to get 8 hours of rest before your shift, accounting for commute time. Essential for night-shift and rotating-schedule workers.	Plan your sleep window around rotating or night shifts by accounting for shift times, commute, and adjustment buffers. Use it when your schedule changes to find the exact bedtime that protects your minimum sleep hours.