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

215,884 days

From Saturday, August 15, 1435 to Wednesday, September 9, 2026.

Monday–Friday weekdays154,203
Weeks and days30,840w 4d
Calendar span591 years, 25 days

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