Hours, Minutes & Seconds Converter

Divide the seconds by 3,600 and keep the whole number as hours. Divide what is left by 60 for minutes, and the final remainder is seconds. For example, 10,000 seconds is 2 hours (7,200 s), then 2,800 s left = 46 minutes and 40 seconds, so 10,000 seconds = 2 hr 46 min 40 sec. Type the seconds into the calculator above and it shows this combined form instantly.

Divide the minutes by 60. The whole number is the hours and the remainder is the minutes. For example, 135 minutes ÷ 60 = 2 remainder 15, so 135 minutes = 2 hr 15 min. Enter the value in the minutes box and the combined result updates automatically.

1 hour = 60 minutes = 3,600 seconds. A day has 24 hours = 1,440 minutes = 86,400 seconds, and a week has 168 hours = 10,080 minutes = 604,800 seconds.

Multiply the hours by 60. For example, 2.5 hours × 60 = 150 minutes. To get seconds, multiply the hours by 3,600 instead (2.5 hours = 9,000 seconds). The calculator shows total hours, total minutes and total seconds at the same time.

Keep the whole number as hours and multiply the decimal part by 60 to get minutes. For example, 3.75 hours = 3 hours and 0.75 × 60 = 45 minutes, so 3.75 hours = 3 hr 45 min. Enter 3.75 in the hours box to check it.

Divide the minutes by 60 and add them to the hours. For example, 7 hr 20 min = 7 + 20/60 = 7.33 decimal hours. This is the format most payroll and billing systems expect. The "Total hours (decimal)" line in the results gives you this number directly.

Yes. Fill in any combination of the three boxes and the calculator adds them up. For example, 1 hour + 45 minutes + 30 seconds gives 6,330 seconds in total, shown as 1 hr 45 min 30 sec. Values above 60 are rolled over automatically, so 90 minutes becomes 1 hr 30 min.

This converter changes an amount of time from one unit to another. The Time Duration calculator finds how much time passes between a start time and an end time of day. Use this page for conversions like "5,400 seconds in hours", and the Time Duration page for "9:00 AM to 5:30 PM".