Zum Inhalt springen

Datumsrechner

Berechne Tage zwischen zwei Daten oder addiere und subtrahiere Jahre, Monate, Wochen und Tage.

Select Calculation

Use this when you need the number of calendar days between two dates.

Result

-

Select Calculation

Use this when you need the number of calendar days between two dates.

Datumsrechner

Schnellstart

1
Choose whether you need a day gap, a date after adding time, or a date after subtracting time.
2
For date difference, enter start and end dates. For date math, enter a start date and the units to add or subtract.
3
Results update instantly. Date difference excludes the end date unless you turn on inclusive mode.

Häufige Anwendungsfälle

Deadlines

add 14 days, 6 weeks, or 3 months to find a target date.

Trip planning

count how many calendar days sit between two dates.

Backtracking

subtract a preparation window from a target date.

Nutzungstipps

When a target month has no matching day, the result is clamped to the last day of that month.
Inclusive mode is for workflows that count the ending day as a full day.
Dates are handled as YYYY-MM-DD calendar dates to avoid timezone shifts.

Einschränkungen und Kompatibilität

This version does not exclude weekends or holidays, so it is not a business-day calculator.
It does not handle time-of-day or timezone conversion; use the timestamp converter for exact instants.
Contracts, payments, and legal deadlines can define their own counting rules.

Datenschutz & Sicherheit

Dates are calculated locally in your browser and are not uploaded.

Häufige Fragen

6

Fahren Sie mit diesen verwandten Tools im nächsten Schritt fort.