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.

The end date comes before the start date

149,231 days

From Saturday, April 7, 2435 to Monday, September 7, 2026.

Monday–Friday weekdays106,594

Weeks and days21,318w 5d

Calendar span408 years, 7 months

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