Dates & planning

Days Between Dates Calculator

Plan a trip, check a deadline, or count down to something good. Find the calendar days separating any two dates.

Instant calculation Private by design Free, no sign-up

Between two days

Start dateEnd date

Count both datesInclude the end date as an additional day

Calendar days, kept simple.Weekends and holidays are included. Clock changes have no effect.

A negative result means the end date comes before the start date.

YOUR RESULT

calendar days

A little math, already taken care of.

Your inputs stay on your device. Results update as you type.

1
Select your start date and end date.
2
Leave “Count both dates” off for the standard date difference.
3
Turn it on to count both calendar dates. Reversed dates produce a negative result.

Days = end calendar date − start calendar date. When counting both dates, add one to the absolute difference and keep the direction.

A QUICK EXAMPLE

March 1 to March 15, without counting both dates

14 days · 2 weeks

Does daylight saving time affect this result?+

No. This calculator compares Gregorian calendar dates, not local timestamps. A clock change does not add or remove a calendar day.

What happens if I choose the same date twice?+

The standard difference is 0 days. With “Count both dates” enabled, that one calendar date counts as 1 day.

Does this count weekends?+

Yes. Every calendar day counts here. Use the Business Days Calculator to exclude weekends and the holiday dates you specify.