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// free tool
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Days Between Dates_

Calculate the exact number of days between any two dates — past or future.
Works for countdowns, anniversaries, age in days, deadlines and more.

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days
// quick countdowns
// age & birthday calculator
FAQ — What is the Date Calculator?

Frequently Asked Questions — Date Calculator

What can the date calculator do?

Calculate days, weeks, or months between two dates, add/subtract time from a date, convert between ISO 8601, Unix timestamps, US, and European formats, and find the day of the week for any date.

What is a Unix timestamp?

The number of seconds since 1 January 1970 00:00:00 UTC. Used universally in software APIs, log files, and databases to represent time as a timezone-independent integer.

What is ISO 8601?

The international date standard: YYYY-MM-DD for dates, YYYY-MM-DDTHH:MM:SSZ for datetimes. Eliminates ambiguity between regional formats and is recommended for APIs.

Can I calculate business days?

Yes. Toggle "business days only" to exclude weekends. Deduct public holidays manually.

Is this tool free?

Yes, completely free. One of 46 free tools at jasperbernaers.com.