Guide

Decimal Hours vs Hours and Minutes

Understand the difference between normal clock time and decimal hours used in payroll and billing.

The difference

Hours and minutes are easy to read. Decimal hours are easier to multiply by a rate or total in a spreadsheet.

Example

2 hours 30 minutes is 2.5 decimal hours, not 2.30 hours.

When to use each

Use hours and minutes for human review. Use decimal hours for payroll, billing, and calculations.

FAQ

Is 1.75 hours the same as 1 hour 75 minutes?

No. 1.75 hours is 1 hour 45 minutes.

Why not use 100 minutes per hour?

Clock time is based on 60 minutes per hour.