Unit Conver
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day Unit Converter
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day [d]

A time unit where 1 day = 24 hours, derived from Earth's rotational period. Universally adopted as the basis for calendars and daily life. In scientific calculations, 1 day = 86,400 seconds (defined by International Atomic Time). Widely used in meteorology, astronomy, and project management.

hour [h]

A time unit where 1 day = 24 hours, derived from Earth's rotational period. Universally adopted as the basis for calendars and daily life. In scientific calculations, 1 day = 86,400 seconds (defined by International Atomic Time). Widely used in meteorology, astronomy, and project management.

Convert day [d] to hour [h]
day [d]hour [h]
1 d24 h
2 d48 h
3 d72 h
4 d96 h
5 d120 h
10 d240 h
20 d480 h
30 d720 h
day [d]hour [h]
40 d960 h
50 d1200 h
100 d2400 h
200 d4800 h
300 d7200 h
400 d9600 h
500 d12000 h
1000 d24000 h