Time Calculator for Nurses

Twelve-hour shifts, nights across midnight, short-staffed overtime — get the real numbers without the mental math.

Current date & timeWork Day (8h)
YearMonthWeekDay
HourMinuteSecondTime separator (HH:MM:SS)
AMPMDate separator (MM/DD/YYYY)
Open the full app — it's free

Nursing schedules are where time math gets genuinely hard: shifts cross midnight, breaks get split, and payroll still wants decimals. TCalc treats each shift as an expression — type it once and the answer is exact.

Night shift? Add the shift length to the start time and the date rolls over by itself.

Real Examples

17:00 - 08:00 - 45m=8h 15m

Day shift minus the meal break.

22:00 + 8h=6:00 AM (next day)

Night shift end — midnight handled automatically.

30m + 45m + 25m + 30m + 40m=2h 50m

A week of split breaks, added up.

42h 30m - 40h=2h 30m

Overtime past the standard week.

Frequently Asked Questions

How do I calculate hours for a night shift that crosses midnight?

Add the shift length to the start: 22:00 + 8h shows 6:00 AM the next day. Or split at midnight and add the parts: a 22:00–06:00 shift is 2h + 6h = 8h.

How do I total a rotating week of different shifts?

Chain each shift's hours in one expression — TCalc carries minutes correctly and can display the total as decimal hours for payroll.

Does my calculation history sync between phone and desktop?

Yes — with a free account, history, layouts, and settings sync across devices, so the total you typed at the ward is on your laptop at home.