How it counts
- start date
- the earlier date
- end date
- the later date
- days
- whole days between the two
The count is calendar days, so it includes weekends and holidays. For working days only, use the business days page.
Frequently asked questions
Does it count both the start and end day?
By default it counts the end day but not the start day. Tick "include the end day" to count both, which adds one to the total.
How are the months worked out?
By the calendar, not a fixed number of days, so the count respects different month lengths and leap years.
Does the count include weekends?
Yes, it counts every calendar day. For weekdays only, use the business days calculator.
How do I count backwards?
Put the earlier date first and the later date second; the tool always shows a positive number of days between them.
Related conversions
Need a date rather than a duration? Add or subtract days moves forward or back from a date, and 90 days from today is ready for deadlines. For working days only there is business days, and to count an age there is age in days.