Decimal Hours to Time Calculator

Use our decimal to time calculator to convert decimal hours to standard time hours and minutes for payroll and employee timesheets.

See Also Time to Decimal Time Card Calculator Overtime Calculator

What is Decimal Time?

Decimal time represents hours as a single number rather than separating them into hours and minutes.

For example:

  • 2.5 hours (decimal format)
  • 2 hours 30 minutes (standard time format)

Instead of writing 1:30, decimal format expresses the total as 1.5. This system is widely used in:

  • US payroll systems
  • Employee time tracking software
  • Government contract billing
  • Construction and trade labor tracking
  • Freelance and consulting invoices

In business environments across the US, decimals are preferred because they simplify time calculations. Adding 2.25 + 6.75 is easier than adding 2:15 + 6:45.

How to Convert Decimal to Time

Here's the formula:

Hours = Whole Number

Minutes = Decimal Portion × 60

Step-by-Step Conversion Process

Step 1: Separate the Whole Number

The whole number represents full hours.

Example: 9.80

  • 9 = hours

Step 2: Multiply the Decimal by 60

Take the decimal portion and multiply by 60.

  • 0.80 × 60 = 48

Step 3: Combine the Results

  • 9 hours 48 minutes

Final answer: 9:48.