Day Counter client-side
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How to use Day Counter

This day counter works out the number of days between two dates, or the date you reach by adding or removing a given number of days from a starting date. You pick your dates and the result appears at once, taking leap years into account. It helps you know how long until an event, check a contractual deadline, count holiday days or compute a project duration. The whole calculation happens in your browser, with no dates sent to a server.

Calculate the number of days between two dates or until a date.

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How to use Day Counter

This day counter works out the number of days between two dates, or the date you reach by adding or removing a given number of days from a starting date. You pick your dates and the result appears at once, taking leap years into account. It helps you know how long until an event, check a contractual deadline, count holiday days or compute a project duration. The whole calculation happens in your browser, with no dates sent to a server.

Frequently asked questions

Does the calculation account for leap years?

Yes, the tool includes February 29 in leap years so the number of days between two dates is exact.

Is the start day included?

The counter shows the difference in whole days between the two dates. You can add one day if your count needs to include the starting day.

Can I add days to a date?

Yes, besides the gap between two dates, you can add or subtract a number of days from a date to get the resulting date.

Are my dates stored?

No, the calculation is local in your browser. No date is transmitted to or kept on a server.