Zeitrechner

Calculate time difference, duration between two times, add or subtract hours and minutes, and convert between time units — all with step-by-step solutions.

Berechnen

Format: HH:MM or HH:MM:SS (24h)

Select a calculation type, enter your values, and click Calculate to see results with step-by-step solution.

Vollständiges Benutzerhandbuch

About This Calculator

This time calculator handles four common time operations: finding the difference between two clock times, adding or subtracting a duration from a time, converting between time units (seconds, minutes, hours, days, weeks), and calculating the duration between a start and end time — with automatic midnight-crossing support.

4 Calculation Types

Zeitunterschied

Find the exact difference between two clock times in hours, minutes, and seconds.

Add / Subtract

Add or subtract hours, minutes, seconds, or days from any clock time.

Einheiten umrechnen

Convert between seconds, minutes, hours, days, and weeks.

Dauer

Berechnen Sie, wie lange es vom Anfang bis zum Ende dauert. Bewältigt Überfahrten über Nacht/Mitternacht.

Key Formulas

Difference: |Time₂ − Time₁| (in seconds)

Hinzufügen: Time + Amount → mod 86400

Convert: Value × FromFactor ÷ ToFactor

Dauer: End − Start (oder 86400 − Start + End)

Wichtige Hinweise

  • Verwenden Sie das 24-Stunden-Format: 0:00 bis 23:59. Beispiel: 14:30 Uhr = 14:30 Uhr.
  • Duration handles midnight crossing: Start 22:00, End 06:00 = 8 hours.
  • Addieren/Subtrahieren dauert etwa 24 Stunden. Durch Subtrahieren nach Mitternacht werden 24 Stunden hinzugefügt.
  • 1 Tag = 86.400 Sekunden, 1 Woche = 604.800 Sekunden.

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