# Seconds to Hours calculator

To use the calculator, place your cursor in the desired unit field and write a number. If needed use the dot "." as the decimal separator.

Rounding:
s
h

## Seconds to Hours Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Seconds to Hours conversion table based on your needs.

Selected rounding: none (You can change it above in the dropdown)

s h s h s h s h
1 0.00027777777777778 26 0.0072222222222222 51 0.014166666666667 76 0.021111111111111
2 0.00055555555555556 27 0.0075 52 0.014444444444444 77 0.021388888888889
3 0.00083333333333333 28 0.0077777777777778 53 0.014722222222222 78 0.021666666666667
4 0.0011111111111111 29 0.0080555555555556 54 0.015 79 0.021944444444444
5 0.0013888888888889 30 0.0083333333333333 55 0.015277777777778 80 0.022222222222222
6 0.0016666666666667 31 0.0086111111111111 56 0.015555555555556 81 0.0225
7 0.0019444444444444 32 0.0088888888888889 57 0.015833333333333 82 0.022777777777778
8 0.0022222222222222 33 0.0091666666666667 58 0.016111111111111 83 0.023055555555556
9 0.0025 34 0.0094444444444444 59 0.016388888888889 84 0.023333333333333
10 0.0027777777777778 35 0.0097222222222222 60 0.016666666666667 85 0.023611111111111
11 0.0030555555555556 36 0.01 61 0.016944444444444 86 0.023888888888889
12 0.0033333333333333 37 0.010277777777778 62 0.017222222222222 87 0.024166666666667
13 0.0036111111111111 38 0.010555555555556 63 0.0175 88 0.024444444444444
14 0.0038888888888889 39 0.010833333333333 64 0.017777777777778 89 0.024722222222222
15 0.0041666666666667 40 0.011111111111111 65 0.018055555555556 90 0.025
16 0.0044444444444444 41 0.011388888888889 66 0.018333333333333 91 0.025277777777778
17 0.0047222222222222 42 0.011666666666667 67 0.018611111111111 92 0.025555555555556
18 0.005 43 0.011944444444444 68 0.018888888888889 93 0.025833333333333
19 0.0052777777777778 44 0.012222222222222 69 0.019166666666667 94 0.026111111111111
20 0.0055555555555556 45 0.0125 70 0.019444444444444 95 0.026388888888889
21 0.0058333333333333 46 0.012777777777778 71 0.019722222222222 96 0.026666666666667
22 0.0061111111111111 47 0.013055555555556 72 0.02 97 0.026944444444444
23 0.0063888888888889 48 0.013333333333333 73 0.020277777777778 98 0.027222222222222
24 0.0066666666666667 49 0.013611111111111 74 0.020555555555556 99 0.0275
25 0.0069444444444444 50 0.013888888888889 75 0.020833333333333 100 0.027777777777778

• ##### Hour (1h)
An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as 1⁄24 of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions. The seasonal, temporal, or unequal hour was established in the ancient Near East as 1⁄12 of the night or daytime. Such hours varied by season, latitude, and weather. It was subsequently divided into 60 minutes, each of 60 seconds. Its East Asian equivalent was the shi, which was 1⁄12 of the apparent solar day; a similar system was eventually developed in Europe which measured its equal or equinoctial hour as 1⁄24 of such days measured from noon to noon. The minor variations of this unit were eventually smoothed by making it 1⁄24 of the mean solar day, based on the measure of the sun's transit along the celestial equator rather than along the ecliptic. This was finally abandoned due to the minor slowing caused by the Earth's tidal deceleration by the Moon.
• ##### Second (0.00027777h)
The second is the SI base unit of time, commonly understood and historically defined as 1⁄86400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each. Another intuitive understanding is that it is about the time between beats of a human heart. Mechanical and electric clocks and watches usually have a face with 60 tickmarks representing seconds and minutes, traversed by a second hand and minute hand. Digital clocks and watches often have a two-digit counter that cycles through seconds. In common parlance, a "clock tick" is a second, though most modern clocks are digital electronic, and do not actually tick. The second is also part of several other units of measurement like velocity, acceleration, and frequency. Though the historical definition of the unit was based upon this division of the Earth's rotation cycle, the formal definition in the International System of Units SI is a much steadier timekeeper: 1 second is defined to be exactly 9 192 631 770 cycles of a Caesium atomic clock. Because the Earth's rotation varies and is also slowing ever so slightly, a leap second is added to clock time to keep clocks in sync with Earth's rotation.
Tags Seconds to Hours s to h Seconds s Hours h converter calculator conversion table