Time to Decimal | Decimal to Time

What is the Time Decimal Converter?

The Time Decimal Converter is a tool for converting time units. It can convert time (in hours, minutes, seconds) into decimal form (with units that can be chosen as hours, minutes, or seconds), or convert decimal time back into hours, minutes, and seconds format.

How to Convert Time to Decimal?

When converting time to decimal, you first need to choose the decimal unit. Common time units include hours, minutes, and seconds. Since each unit has different conversion rules, it is essential to calculate correctly based on the selected unit.

Convert Time to Hours

Keep the hour part the same. Divide the minutes by 60 and the seconds by 3600. The formula is:

Hours + (Minutes ÷ 60) + (Seconds ÷ 3600)

For example, to convert 2 hours, 15 minutes, and 30 seconds into decimal form (in hours).

Calculation: 2 + (15 ÷ 60) + (30 ÷ 3600) = 2 + 0.25 + 0.0083 ≈ 2.258 hours.

Convert Time to Minutes

Keep the minutes part the same. Multiply the hours by 60 and divide the seconds by 60. The formula is:

(Hours × 60) + Minutes + (Seconds ÷ 60)

For example, to convert 2 hours, 15 minutes, and 30 seconds into decimal form (in minutes).

Calculation: (2 × 60) + 15 + (30 ÷ 60) = 120 + 15 + 0.5 = 135.5 minutes.

Convert Time to Seconds

Keep the seconds part the same. Multiply the hours by 3600 and the minutes by 60. The formula is:

(Hours × 3600) + (Minutes × 60) + Seconds

For example, to convert 2 hours, 15 minutes, and 30 seconds into decimal form (in seconds).

Calculation: (2 × 3600) + (15 × 60) + 30 = 7200 + 900 + 30 = 8130 seconds.

As shown in the example, the decimal results are different depending on the time unit used for conversion.

How to Convert Decimal to Time?

To convert decimal to time, first determine the decimal unit:

How to Convert Total Seconds to Hours, Minutes, and Seconds?

  1. Total seconds ÷ 3600 = Hours ... Remainder 1
  2. Remainder 1 ÷ 60 = Minutes ... Remainder 2
  3. Remainder 2 = Seconds

If Remainder 1 is zero, both minutes and seconds are zero.

For example, to convert 135.5 minutes into hours, minutes, and seconds format:

  1. Calculate total seconds: 135.5 × 60 = 8130 seconds
  2. Get hours: 8130 ÷ 3600 = 2 hours ... 930 seconds
  3. Get minutes: 930 ÷ 60 = 15 minutes ... 30 seconds
  4. Get seconds: 30 seconds

Thus, 135.5 minutes is equivalent to 2 hours, 15 minutes, and 30 seconds.

Applications of the Time Decimal Converter