Days between September 1, 1939 and September 2, 1945
There are 2,193 days between these two dates — the length of world war ii.
Time Until
2,193 days
6 years, 1 day
Days
2,193
Weeks
313
+2 days
Months
72
September 1, 1939 to September 2, 1945, broken down
- Days2,193
- Weeks313 + 2d
- Months72
- Years6y 0m
The count is exclusive of the start date and inclusive of the end date: day one is September 1, 1939 plus 24 hours. Weekends and public holidays are included — for working days only, use the business days calculator.
From the invasion of Poland on 1 September 1939 to the formal Japanese surrender on 2 September 1945 is 2,193 days — just over six years. VE Day (8 May 1945) fell about four months before the war ended in the Pacific.
Method & sources
Day counts use the Gregorian calendar and are computed on calendar dates in UTC, so daylight-saving changes never add or remove a day. The count excludes the start date and includes the end date — the same convention as subtracting one date from another.
Page last updated: October 1, 2026
Frequently asked questions
How many days are between September 1, 1939 and September 2, 1945?
There are exactly 2,193 days between the two dates, counting the end date and not the start date.
How many weeks is that?
2,193 days is 313 weeks and 2 days.
How many months and years is that?
About 6 years, 0 months and 1 day (72 months in total).
Other date spans
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