Date & Time Calculator
Years Between Dates Calculator
Calculate the number of complete years between two dates.
Calculator
Results
Complete years
10
Remaining days0
Total days3653
DirectionForward
Results are calculated instantly in your browser using the inputs shown. Date and time calculations follow the stated assumptions below.
How it works
Calculate the number of complete years between two dates.
Complete years count whole anniversaries; remaining days are shown separately.
Example
| Example | Result |
|---|---|
| Jun 15, 2016 to Jun 15, 2026 | 10 complete years. |
Important notes
- Calendar calculations use Gregorian calendar rules.
- Business-day calculations exclude Saturday and Sunday unless stated otherwise.
- Time-zone calculations depend on the browser's IANA time-zone data.
- For planning purposes, verify dates and times when a contractual or legal deadline is involved.
Frequently Asked Questions
Is a year always 365 days here?
No. Complete years follow calendar anniversaries, so leap years are handled naturally.
How to use this calculator
What to enter
Enter or select the following as requested: Start date; End date. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The date or duration result is calculated from the entered dates, times, calendar rules, and exclusions. Check inclusive versus exclusive counting, time zone, daylight-saving changes, and whether weekends or holidays are excluded.
When to use it
Use this to plan a date, measure elapsed time, or estimate a deadline. Verify the relevant calendar, location, and legal or workplace rules when they affect the answer.