Date difference calculator
Calculate the days between two dates, see calendar years and months for longer spans, and count weekdays. Include both dates if needed.
Your result
Your result will appear here.
Count calendar days, without time-zone surprises.
By default, the count excludes the earlier date and includes the later one. January 1 to January 8 is 7 days. Select Include both dates to count 8 days instead.
How are calendar months counted?
Whole months keep the starting day where possible. At a shorter month’s end, the last day is used: January 31 to February 28 is one month in a non-leap year. Remaining days are shown separately. Include both dates adds one day to the span.
Are holidays excluded from weekdays?
No. Weekdays means Monday through Friday only. Public holidays and regional work schedules are not included.
What if the end date is earlier?
The tool counts the gap between the earlier and later dates and tells you when the end date comes first. Leap days are counted; daylight-saving changes do not alter a calendar-day count.