How do I calculate hours worked across midnight?

Enter the times normally. The calculator detects the rollover and adds 24 hours automatically.

How do I include lunch break?

Enter the break in minutes. It is subtracted from the total hours worked.

How do I get the result in decimal hours for billing?

The calculator shows both. Decimal hours (e.g. 7.75) and HH:MM (7h 45m) are displayed side by side.

Hours Calculator

Type a start time, end time, and optional break in minutes. The calculator returns total hours worked — useful for timesheets and freelance billing.

By Numerly · Updated June 14, 2026

Start time

End time

Break (min)

Hours worked

8h 00m

Decimal

8.00 h

Break deducted

30 min

How it works

Convert each clock time to minutes since midnight. End − start gives the elapsed minutes. If the end is earlier than the start, the calculator adds 24 hours to handle overnight shifts. Finally, the break in minutes is subtracted.

Frequently asked

How do I calculate hours worked across midnight?: Enter the times normally. The calculator detects the rollover and adds 24 hours automatically.
How do I include lunch break?: Enter the break in minutes. It is subtracted from the total hours worked.
How do I get the result in decimal hours for billing?: The calculator shows both. Decimal hours (e.g. 7.75) and HH:MM (7h 45m) are displayed side by side.

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