How many days between two dates?
This date difference calculator counts the exact number of days between two dates, and also shows the gap in weeks, months and years. Tick Weekdays only to count business days (Monday to Friday), useful for deadlines, notice periods and delivery times.
The second calculator adds or subtracts days, weeks, months or years from a date: find the date 90 days from today, a due date 40 weeks ahead, or the deadline 10 working days from now.
Questions
Should I include the end date?
By default the count is like “nights”: from Monday to Tuesday is 1 day. Tick “Include the end day” to count both the first and last day, as for a hotel stay counted in days or an event from the 1st to the 3rd (3 days).
Are public holidays excluded from weekdays?
No. Public holidays differ by country, so only Saturdays and Sundays are left out. Subtract any holidays yourself.
What happens when adding a month to 31 January?
You get the last day of February, because February has no 31st. This is how calendars and banks usually handle it.