Time to Decimal Calculator
Convert a time or duration to the total hours, minutes, or seconds in decimal form. The calculator will add the input hours, minutes and seconds and output the totals as a decimal.
Decimal Time:
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How to Convert a Time or Duration to Decimal Hours, Minutes and Seconds
When given a time in hour, minute, and second format, sometimes you need to know the total time in hours, minutes, or seconds. In this situation, you’ll need to convert.
There are a few ways to convert a time to decimal form like this. The calculator above is the easiest way, but there are some simple formulas to convert the time to different units.
The formulas below show how to convert a time duration to decimal form.
time in hours = H + (M ÷ 60) + (S ÷ 3,600)
time in minutes = (H × 60) + M + (S ÷ 60)
time in seconds = (H × 3,600) + (M × 60) + S
Where H is the time in hours, M is the time in minutes, and S is the time in seconds.
There are 60 minutes in 1 hour and 60 seconds in 1 minute. Knowing this, we can then find that there are 3,600 seconds in 1 hour (60 min/hr × 60 s/min = 3,600 s/hr).
For example, let’s convert the time of 6:15:30 to just hours.
time in hours = 6 + (15 ÷ 60) + (30 ÷ 3,600)
time in hours = 6 + 0.25 + 0.0083
time in hours = 6.2583
As another example, let’s convert the time of 6:15:30 to minutes.
time in minutes = (6 × 60) + 15 + (30 ÷ 60)
time in minutes = 360 + 15 + 0.5
time in minutes = 375.5
As a final example, let’s convert the time of 6:15:30 to seconds.
time in seconds = (6 × 3,600) + (15 × 60) + 30
time in seconds = 21,600 + 900 + 30
time in seconds = 22,530
Common Time to Hours, Minutes, and Seconds Decimal Values
| Time | Hours | Minutes | Seconds |
|---|---|---|---|
| 00:00:00 | 0 hrs | 0 min | 0 sec |
| 00:10:00 | 0.1667 hrs | 10 min | 600 sec |
| 00:20:00 | 0.3333 hrs | 20 min | 1,200 sec |
| 00:30:00 | 0.5 hrs | 30 min | 1,800 sec |
| 00:40:00 | 0.6667 hrs | 40 min | 2,400 sec |
| 00:50:00 | 0.8333 hrs | 50 min | 3,000 sec |
| 01:00:00 | 1 hr | 60 min | 3,600 sec |
| 01:10:00 | 1.167 hrs | 70 min | 4,200 sec |
| 01:20:00 | 1.333 hrs | 80 min | 4,800 sec |
| 01:30:00 | 1.5 hrs | 90 min | 5,400 sec |
| 01:40:00 | 1.667 hrs | 100 min | 6,000 sec |
| 01:50:00 | 1.833 hrs | 110 min | 6,600 sec |
| 02:00:00 | 2 hrs | 120 min | 7,200 sec |
| 02:10:00 | 2.167 hrs | 130 min | 7,800 sec |
| 02:20:00 | 2.333 hrs | 140 min | 8,400 sec |
| 02:30:00 | 2.5 hrs | 150 min | 9,000 sec |
| 02:40:00 | 2.667 hrs | 160 min | 9,600 sec |
| 02:50:00 | 2.833 hrs | 170 min | 10,200 sec |
| 03:00:00 | 3 hrs | 180 min | 10,800 sec |
| 03:10:00 | 3.167 hrs | 190 min | 11,400 sec |
| 03:20:00 | 3.333 hrs | 200 min | 12,000 sec |
| 03:30:00 | 3.5 hrs | 210 min | 12,600 sec |
| 03:40:00 | 3.667 hrs | 220 min | 13,200 sec |
| 03:50:00 | 3.833 hrs | 230 min | 13,800 sec |
| 04:00:00 | 4 hrs | 240 min | 14,400 sec |
| 04:10:00 | 4.167 hrs | 250 min | 15,000 sec |
| 04:20:00 | 4.333 hrs | 260 min | 15,600 sec |
| 04:30:00 | 4.5 hrs | 270 min | 16,200 sec |
| 04:40:00 | 4.667 hrs | 280 min | 16,800 sec |
| 04:50:00 | 4.833 hrs | 290 min | 17,400 sec |
| 05:00:00 | 5 hrs | 300 min | 18,000 sec |
| 05:10:00 | 5.167 hrs | 310 min | 18,600 sec |
| 05:20:00 | 5.333 hrs | 320 min | 19,200 sec |
| 05:30:00 | 5.5 hrs | 330 min | 19,800 sec |
| 05:40:00 | 5.667 hrs | 340 min | 20,400 sec |
| 05:50:00 | 5.833 hrs | 350 min | 21,000 sec |
| 06:00:00 | 6 hrs | 360 min | 21,600 sec |
| 06:10:00 | 6.167 hrs | 370 min | 22,200 sec |
| 06:20:00 | 6.333 hrs | 380 min | 22,800 sec |
| 06:30:00 | 6.5 hrs | 390 min | 23,400 sec |
| 06:40:00 | 6.667 hrs | 400 min | 24,000 sec |
| 06:50:00 | 6.833 hrs | 410 min | 24,600 sec |
| 07:00:00 | 7 hrs | 420 min | 25,200 sec |
| 07:10:00 | 7.167 hrs | 430 min | 25,800 sec |
| 07:20:00 | 7.333 hrs | 440 min | 26,400 sec |
| 07:30:00 | 7.5 hrs | 450 min | 27,000 sec |
| 07:40:00 | 7.667 hrs | 460 min | 27,600 sec |
| 07:50:00 | 7.833 hrs | 470 min | 28,200 sec |
| 08:00:00 | 8 hrs | 480 min | 28,800 sec |
| 08:10:00 | 8.167 hrs | 490 min | 29,400 sec |
| 08:20:00 | 8.333 hrs | 500 min | 30,000 sec |
| 08:30:00 | 8.5 hrs | 510 min | 30,600 sec |
| 08:40:00 | 8.667 hrs | 520 min | 31,200 sec |
| 08:50:00 | 8.833 hrs | 530 min | 31,800 sec |
| 09:00:00 | 9 hrs | 540 min | 32,400 sec |
| 09:10:00 | 9.167 hrs | 550 min | 33,000 sec |
| 09:20:00 | 9.333 hrs | 560 min | 33,600 sec |
| 09:30:00 | 9.5 hrs | 570 min | 34,200 sec |
| 09:40:00 | 9.667 hrs | 580 min | 34,800 sec |
| 09:50:00 | 9.833 hrs | 590 min | 35,400 sec |
| 10:00:00 | 10 hrs | 600 min | 36,000 sec |
| 10:10:00 | 10.167 hrs | 610 min | 36,600 sec |
| 10:20:00 | 10.333 hrs | 620 min | 37,200 sec |
| 10:30:00 | 10.5 hrs | 630 min | 37,800 sec |
| 10:40:00 | 10.667 hrs | 640 min | 38,400 sec |
| 10:50:00 | 10.833 hrs | 650 min | 39,000 sec |
| 11:00:00 | 11 hrs | 660 min | 39,600 sec |
| 11:10:00 | 11.167 hrs | 670 min | 40,200 sec |
| 11:20:00 | 11.333 hrs | 680 min | 40,800 sec |
| 11:30:00 | 11.5 hrs | 690 min | 41,400 sec |
| 11:40:00 | 11.667 hrs | 700 min | 42,000 sec |
| 11:50:00 | 11.833 hrs | 710 min | 42,600 sec |
| 12:00:00 | 12 hrs | 720 min | 43,200 sec |
| 12:10:00 | 12.167 hrs | 730 min | 43,800 sec |
| 12:20:00 | 12.333 hrs | 740 min | 44,400 sec |
| 12:30:00 | 12.5 hrs | 750 min | 45,000 sec |
| 12:40:00 | 12.667 hrs | 760 min | 45,600 sec |
| 12:50:00 | 12.833 hrs | 770 min | 46,200 sec |
Frequently Asked Questions
What is 30 minutes as a decimal?
30 minutes converted to decimal form is either 0.5 hours or 1,800 seconds.
What is a time, in decimal form, converted to hours?
A time, in decimal form, converted to hours depends on the units of the time. For example, a decimal time, t, in minutes, will be t/60 hours. A decimal time, t, in seconds, however, will be t/3,600 hours.
What is 0.75 of an hour?
0.75, or 75%, of an hour is 45 minutes or 2,700 seconds.