Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

262,064 days

From Wednesday, March 13, 1309 to Monday, September 14, 2026.

Monday–Friday weekdays187,188
Weeks and days37,437w 5d
Calendar span717 years, 6 months, 1 day

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.