Days together calculator
How many days have we been together?
Get a clear answer from the date your relationship began, then understand why Day 0 and Day 1 conventions can differ by one.
Try it now
How many days have you been together?
Enter the date your relationship began. This counts completed calendar days, so the answer stays consistent through daylight-saving changes.
Track milestones in Anniversary TrackerA useful distinction
A running total is not the same as an anniversary.
Completed days are useful for numbered milestones such as 100, 500, or 1,000 days. Years and months describe calendar anniversaries, which should be calculated as calendar dates rather than approximated with 365-day years or 30-day months.
The calculator runs locally in your browser. It does not ask for an account, upload your date, or claim to replace a relationship or healthcare service.
Questions
About the calculation
What does this calculator count?
It counts completed calendar days between the date you enter and today. It does not count fixed 24-hour blocks, so daylight-saving changes do not alter the result.
Why do other calculators show a different number?
The usual difference is whether the starting date is treated as Day 0 or Day 1. This page shows completed days and also gives the inclusive Day 1 number.
Which date should we use?
Use the date you both recognise as the beginning of your relationship, such as your first date or the day you agreed you were together. Save weddings and other occasions as separate milestones.
Can I keep the number and upcoming milestones?
Anniversary Tracker keeps a day counter, milestones, reminders, custom dates, and widgets together on iPhone and Android. Check the current store listing for availability and requirements.