EN

Date calculator

Count the days between two dates, or find the date that is a number of days, weeks, months or business days from another date.

Free and private. Everything runs in your browser, nothing is uploaded.

How it works

  1. Choose the modeDays between dates, or add and subtract.
  2. Enter the datesPick dates in the calendar or type them.
  3. Read the resultSee the days, business days and the date in full.

Count days the right way

From Monday to Friday is 4 days, or 5 if you count both days, as hotel nights and rental periods are counted differently from holidays. The Include end date option switches between the two. The result also shows years, months and days, the number of weeks and the business days from Monday to Friday, useful for delivery times, notice periods and project plans.

Public holidays differ from country to country and are not subtracted, so check local holidays for exact working day counts.

Add and subtract

Find a due date 90 days from today, a date 6 months after a contract start, or 10 business days after an order. Adding months keeps the day of the month where possible and uses the last day of shorter months: 31 January plus one month is 28 or 29 February.

Frequently asked questions

Is the end date included?

Not by default. Turn on Include end date to count both the start and the end day.

Are public holidays excluded from business days?

No. Only Saturdays and Sundays are excluded, since holidays differ by country.

What is 31 January plus one month?

The last day of February, 28 or 29 depending on the year.

Can I go back in time?

Yes. Choose Subtract, or enter an end date before the start date.