Convert Days to Hours
d to hr · time conversion
What are days and hours?
A day is 24 hours, the time for Earth to rotate once on its axis. An hour is 60 minutes, or 3,600 seconds. For reference: there are 86,400 seconds in a day and 604,800 in a week.
How to convert days to hours
1 d = 24 hr. To convert, multiply the number of days by 24. For example, 5 d = 120 hr, and 20 d = 480 hr. To go the other way, multiply hours by 0.0416667 (since 1 hr = 0.0416667 d).
Days to Hours conversion table
| Days (d) | Hours (hr) |
|---|---|
| 1 | 24 |
| 5 | 120 |
| 10 | 240 |
| 30 | 720 |
| 60 | 1,440 |
| 90 | 2,160 |
| 365 | 8,760 |
FAQ
What is 1 d in hr?
1 d = 24 hr. To convert any amount, multiply the number of days by 24.
How do I convert hours back to days?
Go the other way: 1 hr = 0.0416667 d, so multiply hours by 0.0416667 to get days.
Is a day bigger than a hour?
Yes — 1 d is the larger unit, equal to 24 hr.
Are these time conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.