How many days since…?
Count the days since an anniversary, a milestone, a streak or a quit date. Today is Wednesday, October 7, 2026; every count goes up by one at midnight. Looking for a specific date? Use an address like days since July 4 or days since January 1, 2026.
Popular dates
What was the date…
Counting forward instead? See days until any date.
Is the start date counted?
No — we count the days after the start date up to and including today, the same way Excel does with =TODAY()-start.
Can I use a year?
Yes. Pick a full date, or use an address like /dayssince/january-1-2026.