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CalcWolf Everyday Life Zeitrechner
Everyday Life

Add & Subtract Hours, Minutes, Seconds

Add or subtract time durations. Calculate total hours and minutes from multiple time entries — perfect for timesheets.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Operationen

Addition: 2h45 + 1h30 = 4h15. Subtraktion: 5h20 - 2h45 = 2h35. Wenn Minuten ueber 60: +1 Stunde, -60 Minuten. 3h50 + 0h25 = 3h75 → 4h15.

Zeiterfassung

Seit 2022 ist die Arbeitszeiterfassung in Deutschland Pflicht (BAG-Urteil). Decimal: 7,75h = 7h45. Fuer Stundenzettel: Dezimalformat nutzen, multipliziert leichter mit Stundenlohn.

⚡ CalcWolf Insight

Time calculator gets 40K monthly searches, driven by hourly workers filling out timesheets and students calculating study time. Usage peaks on Fridays (timesheet day) and at month-end.

Frequently asked questions
Dezimal umrechnen?
Dezimalteil × 60. 2,75h = 2h + (0,75 × 60) = 2h45.
Ist Zeiterfassung Pflicht?
Ja — seit BAG-Urteil 2022. Arbeitgeber muessen Arbeitszeit systematisch erfassen.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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