Hours to days converter
Provide a time below to convert hours (h) to days (d). For the reverse direction, visit the days to hours converter.
1 hour equals 1/24 of a day, or approximately 0.0416667 days. This is a standard time conversion based on the Earth's rotation period.
To convert hours to days, divide the measurement in hours by 24. To convert days to hours, multiply the value in days by 24.
Hours
Definition: An hour (symbol: h) is a unit of time equal to 60 minutes or 3,600 seconds. It is 1/24 of a day.
History: The division of the day into 24 hours dates back to ancient Egypt, though the length of an hour varied depending on the season. The modern hour of fixed duration became standard with the development of mechanical clocks.
Current use: Hours are used universally for measuring time in daily life, work schedules, transportation, and virtually all human activities.
Days
Definition: A day (symbol: d) is a unit of time equal to 24 hours, representing the time Earth takes to complete one rotation on its axis.
History: The concept of a day has been fundamental to human timekeeping since ancient times, based on the cycle of day and night caused by Earth's rotation.
Current use: Days are used universally for calendar systems, scheduling, planning, and measuring longer durations of time. They form the basis of weeks, months, and years.
| Hours [h] | Days [d] |
|---|---|
| 1 h | 0.041667 d |
| 6 h | 0.25 d |
| 12 h | 0.5 d |
| 24 h | 1 d |
| 48 h | 2 d |
| 72 h | 3 d |
| 120 h | 5 d |
| 168 h | 7 d |
| 336 h | 14 d |
| 720 h | 30 d |
| 8760 h | 365 d |