How Many Days Have We Been Together?
Pick the day you two got together and see how many days you've been a couple, how many months and years that is, and when your next monthiversary, 6-month and 1-year anniversaries, 100 days and 1000 days fall. The day you got together counts as Day 1.
Choose a date and your milestones will show up here. (Your start date = Day 1)
Tired of doing the math? Add your date once in Couple Calendar and your day count and upcoming anniversaries are always on screen — in the app and on a home screen widget. You also get one shared calendar for the two of you, automatic anniversary reminders, and a countdown to the next time you see each other. Works on iPhone and Android, free, with no ads.
Download on the App Store Get it on Google PlayHow we count: your first day is Day 1
This counter includes the day you got together, so that day is Day 1. That makes "N days together" your start date plus N − 1 days — your 100th day is 99 days after you started. Monthiversaries and anniversaries work differently: they fall on the same date each month or year, not after a set number of days. Here's how it looks if you got together on March 1, 2026:
| Milestone | How it's counted | Started Mar 1, 2026 |
|---|---|---|
| 1-month (first monthiversary) | Same date next month | Apr 1, 2026 |
| 100 days together | Start date + 99 days | Jun 8, 2026 |
| 6-month anniversary | Same date 6 months later | Sep 1, 2026 |
| 200 days together | Start date + 199 days | Sep 16, 2026 |
| 1-year anniversary | Same date next year | Mar 1, 2027 |
| 500 days together | Start date + 499 days | Jul 13, 2027 |
| 1000 days together | Start date + 999 days | Nov 24, 2028 |
A lot of "days together" calculators start counting at Day 0 instead, so they'll show one day less than this page. Both are fine — it just depends on whether you count the first day. Most couples in the US mark monthiversaries in the first year and then yearly anniversaries, so the list includes those alongside the day-count milestones.
For long-distance couples
When you're apart, the number that matters most is often how many days until you see each other again. Couple Calendar is built with that in mind:
- Next meetup countdown — a "D-n" countdown to your next visit, in the app and on the home screen widget.
- Your partner's local time — see what time it is where they are before you call or text.
- One calendar for both of you — flights, shifts and plans in one place, even if one of you is on iPhone and the other on Android.
More tips in our guide: A Shared Calendar for Long Distance Couples.
FAQ
Is the day we got together Day 1 or Day 0?
This counter treats the day you got together as Day 1, so it counts that day too. That means your 100th day is 99 days after your start date. Many other day counters start at Day 0, so they show one day less than this page. Neither is wrong — if you prefer Day 0, just subtract one.
When is our 6-month anniversary?
It's the same date six months later. If you got together on March 1, your 6-month anniversary is September 1. Depending on the months in between, that's 181 to 184 days after your start date.
We got together on the 31st. When is our monthiversary?
In months without a 31st, this counter uses the last day of the month (the 30th, or Feb 28 or 29). Every monthiversary is calculated from your original start date, so it goes back to the 31st in months that have one.
Do couples really celebrate 100 days together?
In the US and other English-speaking countries, monthiversaries in the first year and yearly anniversaries are the usual milestones. Counting days is less common, but 100 days and 1000 days together are fun milestones some couples like to mark, so this page shows both.
We got together on February 29. When is our anniversary?
In years without a February 29, this counter shows February 28. Some couples celebrate on March 1 instead — pick whichever feels right to you two.