Simple Date Calculator
Days between dates, add or subtract, and time totals.
Days between
The difference between two dates, broken into days, weeks, months and years, plus hours, minutes and seconds. Choose whether the end date counts. Useful for an age, a project timeline or the days until an event.
Add or subtract
Start from any date and add or subtract days, weeks, months or years. You get the resulting date, its weekday, and how far it is from today. Tap a number to type an exact value and jump 1,000 days in one go.
Time totals
Add and subtract up to 20 entries of hours and minutes and read the total as both HH:MM and decimal hours. Made for work hours and billable time.
Fast and offline
Results update as you change the inputs, entries are kept between sessions, and there is a light and a dark mode. Works fully offline. No ads, no subscription, no account.
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