How many days since a date?
Pick the day something last happened. The count updates as you type, and nothing leaves your browser.
Pick a date and the count appears here. Nothing is sent anywhere.
Where this runs
Entirely in your browser. The dates you type are never sent anywhere, there is no request behind the answer, and nothing is stored when you close the tab. The same is true of TimeSince itself, which keeps your counters encrypted on your phone with no server in the middle.
Let it keep count for you
TimeSince runs this arithmetic continuously, for everything you track. Free for three counters.
