= Super Calculator

Days between dates, workdays and deadlines

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Write dates as you usually do, 31.12.2026 or Dec 31, 2026, and calculate in words: deadline - start, start + 10 workdays, days until 31.12.2026. Month lengths and leap years are handled for you.

What you can ask

How days are counted

The difference between two dates is the number of nights between them: from October 1 to October 2 is one day. Months are added by the calendar: 31.01.2027 + 1 month gives Feb 28, 2027, because February has no 31st, and the calculator says so. Public holidays are not counted, only Saturdays and Sundays.

Examples: what you type and what you get

You typeYou get
91 days
Oct 31, 2026 (Sat)
Oct 29, 2026 (Thu)
Jan 1, 2027 (Fri)
Thursday
Feb 28, 2027 (Sun)
depends on today's date
depends on today's date

Common questions

Are public holidays excluded from workdays?

No, only weekends are: Saturday and Sunday. Holidays differ by country, so subtract them by hand if needed.

Which date formats work?

31.12.2026, 2026-12-31, Dec 31, 2026 or 31 December 2026. A date written with slashes, such as 13/10/2026, is read as a division so it is not confused with a calculation.

How do I count from today?

Write today + 45 days or days until 31.12.2027. “Today” comes from your device's clock.

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