Dates
Calculator for difference between dates
Calendar gap between two dates for days, weeks and years-months-days.
Add to workspaceYour numbers
Result dey update as you type; no Calculate button dey. All calculation dey run inside your browser.
Result
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Enter start date and end date.
How the result break down
| Quantity wey we dey count | Value wey e get |
|---|---|
| Days (end − start) | — |
| Weeks and days | — |
| Calendar breakdown | — |
| Days wey include both start and end dates | — |
Headline count exclude end date (1 January to 2 January na 1 day). Add 1 for inclusive count, which count both endpoints.
Formula
Calendar difference = end date − start date, with only the local calendar dates. To break am into years–months–days, we first count complete calendar years, then complete months, then the days wey remain, just like age calculation.
Example wey show the calculation
From 1 January 2026 to 31 December 2026: 364 days, exactly 52 weeks, and calendar breakdown of 11 months and 30 days. Inclusive count, counting both 1 January and 31 December, na 365 days. Use Reset example above to reproduce this result.
Where e fit work and limits
Only whole local calendar dates compared; times of day and time zones ignored. Leap years handled by calendar itself — 2026 not leap year, while interval spanning 29 February 2028 for include that day. Month lengths differ, so years–months–days breakdown na calendar statement, not days divided by 30. No public holidays involved in this count; for weekdays only, use workday calculator.
E use proleptic Gregorian calendar and date-only arithmetic, independent of daylight saving time. Complete years and months use di original day of month, but move am to di last valid day if necessary. Other anniversary conventions fit different; dis no be legal age determination.
Questions wey people dey ask often
Dem include the end date?
No, in headline count. From 1 January to 2 January na 1 day. Inclusive count (both endpoints) shown separately and always one more.
Why I no fit just divide days by 30 to get months?
Because months na 28–31 days long. Dividing by 30 give approximation wey dey drift; calendar breakdown here count completed months exactly.
How una handle leap years?
The real calendar dey handle am. If 29 February fall inside the interval, e go add one day to the count automatically.
Wetin if end date come before start date?
The day count go be negative, and the page go flag am. We go show the calendar breakdown for the other direction and label am clearly.
This tool dey count holidays?
No. E count calendar days only. To exclude weekends, use workday calculator.
Other tools wey relate to dis
- Calculator for workdays — count weekdays for a date range; leave weekends out
- Calculator for countdown — calendar days before or after the date wey you choose
- Calculator for age — exact age for years, months and days
Results na estimates; dem no replace advice from qualified professional.