Calculate years, months, and days since a special date. Free online anniversary calculator with next anniversary countdown.
The anniversary calculator computes the exact time elapsed since a special date — whether it's a wedding, relationship start, employment, or any other milestone. It provides the duration in years, months, and days, plus a countdown to the next anniversary.
Duration = Current Date - Event Date
Next Anniversary = Next occurrence of event month/dayThe calculator subtracts the event date from the current date, accounting for varying month lengths. The next anniversary is found by checking if this year's anniversary has passed and, if so, using next year's date.
| Input | Output |
|---|---|
| Wedding: June 15, 2020 | 4 years, 8 months, 18 days | Next: June 15 |
| Started job: Jan 1, 2019 | 6 years, 2 months, 4 days | Next: Jan 1 |
| First date: Mar 20, 2022 | 2 years, 11 months, 15 days | Next: Mar 20 |