Simple Date Calculator
Three quiet tools for days and durations.
Days between
The exact gap between two dates, broken into days, weeks, months, and years — down to seconds if you want them, with the end date counted or not.
Add or subtract
Start from any date, jump a thousand days in one go, and land on a result you can plan around — weekday included.
Time totals
Sum hours and minutes across up to twenty entries and read the result as both hh:mm and decimal hours.
Offline, always
No network requests, no tracking. Your dates stay on your phone.
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