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

159,940 days

From Thursday, October 13, 1588 to Monday, September 7, 2026.

Monday–Friday weekdays114,242
Weeks and days22,848w 4d
Calendar span437 years, 10 months, 25 days

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