Schichtarbeit

Arbeitszeit über Mitternacht berechnen: So rechnest du Nachtschichten richtig aus

Autor: M. Schmidt Veröffentlicht am: 28.6.2026 Aktualisiert am: 18.8.2026 Lesezeit: 5 Min.

Working a night shift that crosses into a new day throws off normal math fast. A shift starting at 22:00 and ending at 06:00 doesn’t fit neatly into a single calendar day, and that confuses a lot of people. This guide shows exactly how Arbeitszeit über Mitternacht berechnen works, step by step, so your night hours always add up correctly.

Warum wird eine Arbeitszeit über Mitternacht falsch berechnet?

The usual mistake happens when people simply subtract end time from start time without accounting for the day change. Six minus twenty-two gives a negative number, which obviously makes no sense.

The fix is treating midnight as a rollover point, not a wall. Once you add 24 hours to the end time mentally, the subtraction suddenly works out cleanly and matches real hours worked.

Wie berechnet man eine Schicht von 22:00 bis 06:00 Uhr?

Take 22:00 as your start. Add 24 hours to your 06:00 end time, making it effectively “30:00” for calculation purposes only.

Subtract: 30:00 minus 22:00 equals 8 hours. That’s your full Nachtschicht berechnen result, spanning two calendar days but forming one continuous shift.

Wie funktioniert die Rechnung über einen Tageswechsel?

The Tageswechsel, or day change, is really just a bookkeeping detail. Your body experiences one continuous shift, even though the calendar flips to a new date at midnight.

For payroll purposes, some systems split the shift into two entries, one per calendar day. Others log it as a single overnight block. Either method works as long as total hours match.

Nachtschicht Arbeitszeitberechnung über Mitternacht mit 24-Stunden-Rollover

Wie werden Pausen bei Nachtschichten abgezogen?

Break rules don’t change just because it’s dark outside. An eight-hour night shift still requires the same Pausen Nachtschicht minimums as a daytime shift of equal length.

Subtract the break exactly like you would during the day. An 8-hour shift with a 30-minute break nets out to 7.5 hours worked, midnight crossing or not.

Wie berechnet man mehrere Zeitabschnitte rund um Mitternacht?

Some schedules include split segments, like working 20:00 to 00:00, then resuming 01:00 to 05:00 after a longer break.

Abschnitt Zeit Dauer
Segment 1 20:00–00:00 4 Stunden
Pause 00:00–01:00 1 Stunde
Segment 2 01:00–05:00 4 Stunden
Gesamt 8 Stunden

Add each worked segment separately, then combine the totals at the end.

Was passiert bei einer Schicht über zwei Kalendertage?

Legally and practically, a shift spanning zwei Kalendertage still counts as one continuous work period for rest-time purposes. Your Ruhezeit clock starts only once the entire shift ends.

This matters for scheduling the next shift too. The mandatory rest period applies from the actual end time, not from midnight or the start of the new calendar day.

Wie lassen sich Start- und Endzeiten korrekt eingeben?

When entering data into a spreadsheet or app, always specify the date alongside the time. “22:00 on Monday to 06:00 on Tuesday” avoids the ambiguity that plain clock times alone create.

Most Arbeitszeitrechner tools built for night shifts include a date-crossing option specifically for this reason. Using it removes guesswork entirely from your Arbeitszeit Tageswechsel calculations.

Wie berechnet man Nachtarbeit mit Dezimalstunden?

Converting to decimal makes payroll math faster. Eight hours worked equals simply “8.0” in decimal form, while 7 hours 30 minutes becomes “7.5.”

This matters especially when combining regular and Nachtstunden for weekly totals, since decimal addition is far less error-prone than juggling separate hours and minutes columns.

Welche Fehler entstehen beim manuellen Rechnen über Mitternacht?

The most common slip-up is forgetting the 24-hour rollover entirely, leading to negative or nonsensical results. Another frequent error involves miscounting which calendar day a break falls into.

Using a dedicated Arbeitszeit Rechner Mitternacht tool eliminates both problems instantly, since the software handles date logic automatically instead of relying on manual mental math.

Fazit: Arbeitszeiten über den Tageswechsel korrekt berechnen

Night shifts don’t have to be a math headache. Add 24 hours to your end time whenever a shift crosses midnight, subtract breaks normally, and always track the date alongside the clock time. Master this once, and every future Nachtschicht calculation becomes second nature.

Quellen und Referenzen

  1. Arbeitszeitgesetz (ArbZG) § 2 Abs. 3 und 4 (Nachtzeit und Nachtarbeit)
  2. Arbeitszeitgesetz (ArbZG) § 6 (Nacht- und Schichtarbeit)
M. Schmidt
Autor

M. Schmidt

Expertise: Arbeitsrecht & HR-Compliance

Marcus Schmidt ist Fachanwalt für Arbeitsrecht und berät seit über 15 Jahren Unternehmen und Arbeitnehmer zu Arbeitszeitmodellen, Überstundenregelungen und HR-Compliance.

Geprüft von

John Doe

Senior HR Consultant und Compliance-Spezialist