Seconds to Hours Converter: Formula and Conversion Table

seconds s hours h

1 s = 0.0002777777778 h

Formula

h = s ÷ 3600

How to convert

To convert seconds to hours, divide the value by 3,600. For example, 5 s = 0.001388888889 h.

Conversion table

Seconds (s)	Hours (h)
1 s	0.0002777777778 h
5 s	0.001388888889 h
10 s	0.002777777778 h
15 s	0.004166666667 h
30 s	0.008333333333 h
45 s	0.0125 h
60 s	0.01666666667 h
90 s	0.025 h
120 s	0.03333333333 h
300 s	0.08333333333 h
600 s	0.1666666667 h
3,600 s	1 h

About these units

The second is the SI unit of time. 1 second = 1,000 milliseconds, 1 minute = 60 seconds, 1 hour = 60 minutes = 3,600 seconds and 1 day = 24 hours = 86,400 seconds. Programming APIs use milliseconds (JavaScript's Date.now(), timeouts) or seconds (Unix timestamps), so mixing them up is a common off-by-1,000 bug. Days with a daylight saving change last 23 or 25 hours; this converter uses fixed 24-hour days.

FAQ

› How do I convert s to h?

1 s = 0.0002777777778 h. To convert, divide the value by 3,600: 5 s = 0.001388888889 h.

› What is 1 h in s?

1 h = 3,600 s. The reverse formula is s = h × 3600.

› How many milliseconds are in a minute?

60,000. A minute has 60 seconds and each second has 1,000 milliseconds.

› How many seconds are in a day?

86,400 in a standard 24-hour day. Leap seconds and daylight saving changes are ignored here.