Date Calculator
Find the number of days between two dates, add or subtract days, weeks, months or years, or count down to a date such as Christmas.
Pick dates to calculate.
Try:
Frequently asked questions
Are both dates counted?
The day count is the number of calendar days from the start date to the end date (like 1 Jan to 2 Jan = 1 day). An inclusive count (both dates counted) is shown as well.
Does it handle time zones?
Dates are treated as local calendar dates in your current time zone, with no time of day.
How does adding months work around month ends?
Adding months uses the calendar: 31 January plus one month is 2 March or 3 March depending on the year, following standard date-fns / JavaScript overflow rules.