EpochLab

Working Days Calculator

Working days between two dates, on your working week

The same count as business days, but starting from the working week rather than the holiday calendar — for six-day weeks, Sunday-to-Thursday weeks, and anywhere the Monday-to-Friday assumption does not hold.

Questions people ask

The things that come up about working days calculators, answered plainly.

How is this different from the business days calculator?

Same arithmetic, different starting point. That page assumes Monday to Friday with a national holiday calendar applied; this one starts with no holidays and puts the working week first, which is the setting people actually need to change.

How many working days are in a year?

On a Monday-to-Friday week, 260 or 261 depending on how the year falls. Subtract public holidays — typically 8 to 13 — and you land near 250, which is the figure most day-rate and capacity planning uses.

Related tools

How far apart two instants are — in whichever unit you need, counting every day or only the working ones.

Business Days CalculatorWeekends out, public holidays out, and the ones it removed listed by name — so you can see whether the calendar you picked is the one your contract means.
Weekend Days CalculatorSaturdays and Sundays counted separately, plus every other weekday, so you can see exactly how a span is made up rather than just how long it is.
Shift CalculatorOne shift at a time: length, paid hours after breaks, whether it crosses midnight, and where it sits in a rotating pattern.
Days Between DatesA plain day count, with the weekday split beside it and the inclusive answer stated too — because half the time "days between" means one more than subtraction gives.

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