Date difference calculator
Pick two dates and get the gap every way you might need it: days, weeks and days, months and days, years.
Difference
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—Weeks + days
—Months + days
—Years, months, days
Frequently asked questions
Is the end date included in the count?
By default no: Monday to Friday is 4 days, the standard "days between" convention. Toggle "include end date" to count it, which gives 5, the convention for durations like hotel nights counted per day.
How are months counted when the dates do not line up?
Full calendar months are counted first, then the leftover days. January 31 to March 1 is 1 month and 1 day, because February has no 31st.
Do leap years affect the result?
The day count is exact regardless of leap years, since it comes from actual calendar dates rather than multiplying years by 365.