Anniversary Calculator
Time since any milestone — years, months, days, plus countdown to the next.
Celebrate the Count, Not Just the Day
Whether it's a first date, wedding, work anniversary, or personal streak — see exactly how long has passed, broken down into the most meaningful units, plus when the next milestone lands.
Ideas to Track
- Wedding and dating anniversaries
- Work tenure and service years
- Sobriety streaks or habit chains
- Pet adoption or family milestones
Frequently Asked Questions
What can I use this for?
Any recurring milestone — wedding, dating, job start, house move, sobriety, fitness streak, business founding. Anything counted from a past date.
How is the next anniversary calculated?
We add exact years to your start date and show the days left until the next occurrence. If the anniversary is today, we'll highlight it.
Does it handle Feb 29 anniversaries?
Yes. For non-leap years, the anniversary shifts to Feb 28 or Mar 1 depending on your preference — most people pick Feb 28.
Can I calculate hours and minutes since?
Yes. Alongside years/months/days we also show total days, hours, and minutes since the event.