Question 1

What can I calculate with TimeSpanCalc?

Accepted Answer

TimeSpanCalc works as a time span calculator, date duration calculator, and time period calculator. SPAN mode finds the days, weeks, or months between two dates; LAND mode adds or subtracts a duration from a date; TOTAL mode sums multiple durations.

Question 2

How do I use this as a date span calculator?

Accepted Answer

Switch to SPAN mode (the default). Enter your start date in field A and your end date in field B — the date span appears instantly in days. Tap the result to switch between days, weeks, and a years + months + days breakdown.

Question 3

Is TimeSpanCalc free to use?

Accepted Answer

Yes. TimeSpanCalc is completely free — no account, no ads, and no sign-up required. It works on any device with a modern browser.

Question 4

Does TimeSpanCalc work offline?

Accepted Answer

Yes. TimeSpanCalc is a Progressive Web App (PWA). After your first visit, it can be installed on your device and used without an internet connection.

Free Date & Time Span Calculator