Hour (h)
An hour is exactly 3,600 seconds — one twenty-fourth of a mean solar day in everyday use.
Hours bill work shifts, plan travel itineraries, and size battery runtime estimates.
Hour to Day
Convert hour to day instantly. Type in either field — results update live.
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Time Hour Day
1 hour = 0.0416666667 days
Unit
Unit
Conversion table
Selected h values converted to d using the exact factor from this tool.
| h | d |
|---|---|
| 0.01 | 0.0004166667 |
| 0.1 | 0.0041666667 |
| 1 | 0.0416666667 |
| 2 | 0.0833333333 |
| 3 | 0.125 |
| 5 | 0.2083333333 |
| 10 | 0.4166666667 |
| 20 | 0.8333333333 |
| 50 | 2.0833333333 |
| 100 | 4.1666666667 |
| 1,000 | 41.6666666667 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 h = 0.0416666667 d
1 d = 24 h
To convert hour to day, multiply by 0.0416666667.
To convert day to hour, multiply by 24.
Example: convert 10 h to d
10 × 0.0416666667 = 0.4166666667 d
About these units
Short background on the units used in this conversion.
Day (d)
A civil day is exactly 86,400 seconds — 24 hours from midnight to midnight.
Days track weather forecasts, medication schedules, and project deadlines.
Frequently asked questions
How many days are in one hour?
One hour equals 0.0416666667 days. Multiply your hours value by 0.0416666667 to convert to days.
What is the conversion formula?
d = h × 0.0416666667The reverse is
h = d × 24, using the same exact factors as this converter.Is this Hour to Day converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All hour conversions
Jump to any time conversion starting from hour — including the reverse direction and every other unit in our dataset.
day (d) → hour (h)
hour (h) → second (s)hour (h) → millisecond (ms)hour (h) → microsecond (µs)hour (h) → nanosecond (ns)hour (h) → picosecond (ps)hour (h) → femtosecond (fs)hour (h) → attosecond (as)hour (h) → minute (min)hour (h) → week (wk)hour (h) → month (average) (mo)hour (h) → year (a)hour (h) → year (common, 365 days) (a)hour (h) → year (leap, 366 days) (a)hour (h) → year (tropical) (a)hour (h) → year (sidereal) (a)hour (h) → month (synodic) (mo)hour (h) → day (sidereal) (d*)hour (h) → hour (sidereal) (h*)hour (h) → minute (sidereal) (min*)hour (h) → second (sidereal) (s*)hour (h) → decade (dec)hour (h) → century (c)hour (h) → millennium (mil)hour (h) → fortnight (fn)hour (h) → shakehour (h) → septennial (sept)hour (h) → octennial (oct)hour (h) → novennial (nov)hour (h) → quindecennial (quind)hour (h) → quinquennial (quin)hour (h) → planck time (tP)