Smart Calculators

Time Calculator – Add Two Time Durations

A time calculator adds two time durations. You enter hours and minutes for each; the result is total minutes. Useful for tracking project time or adding up work periods. This article explains the calculation and links to our time calculator.

Quick Answer

LabelValue
Time 12h 30m
Time 23h 45m
Total (minutes)375

How It Works

Total minutes = (hours1 × 60 + minutes1) + (hours2 × 60 + minutes2). For 2h 30m + 3h 45m: 150 + 225 = 375 minutes (6h 15m). Our calculator returns total minutes; divide by 60 for hours and use the remainder for minutes.

Additional Notes

For duration between two clock times (e.g. 9:00 to 17:30), use our Hours Calculator.

Use Our Calculator

Try our Time Calculator for your own numbers: /calculators/time-calculator

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Frequently asked questions
  • Convert each to minutes (hours × 60 + minutes), add them. Use our calculator for quick results.

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