Days between July 28, 1914 and November 11, 1918
There are 1,567 days between these two dates — the length of world war i.
Time Until
1,567 days
4 years, 3 months, 14 days
Days
1,567
Weeks
223
+6 days
Months
51
July 28, 1914 to November 11, 1918, broken down
- Days1,567
- Weeks223 + 6d
- Months51
- Years4y 3m
The count is exclusive of the start date and inclusive of the end date: day one is July 28, 1914 plus 24 hours. Weekends and public holidays are included — for working days only, use the business days calculator.
World War I ran from the Austro-Hungarian declaration of war on 28 July 1914 to the Armistice on 11 November 1918 — 1,567 days, or four years and about three and a half months.
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 July 28, 1914 and November 11, 1918?
There are exactly 1,567 days between the two dates, counting the end date and not the start date.
How many weeks is that?
1,567 days is 223 weeks and 6 days.
How many months and years is that?
About 4 years, 3 months and 14 days (51 months in total).
Other date spans
Related tools
These free tools pair well with this page — open them in a new tab to finish your workflow.