Quick Answer
How do you calculate days between two dates?
// Answer
Subtract the earlier date from the later one and divide the millisecond difference by the number of milliseconds in a day (86,400,000). This calculator does it instantly and also shows the gap in weeks and approximate months, accounting for leap years.
Why use this tool
Plan and track time
Count down to a deadline, measure a billing or rental period, work out a notice period, or find how long ago something happened. The result updates live as you change either date.
FAQ
Frequently asked questions
It counts the number of days between them. Add one if you need to include both endpoints.
Yes, the day count is exact and automatically accounts for leap years.
Yes, the tool shows the absolute difference regardless of order.
Yes, calculations run entirely in your browser.
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