Days to Seconds
1 Day = 86,400 Seconds
86,400
About these units
Days
The day equals 24 hours, the time for Earth to rotate once on its axis. It's the basic unit of the calendar.
Seconds
The second is the SI base unit of time, defined by the vibrations of a cesium atom. It's the foundation for all other time measurements.
Conversion formula
To convert Day to Second, multiply the value by 86,400.
Quick reference
| Days | Seconds |
|---|---|
| 1 | 86,400 |
| 2 | 172,800 |
| 5 | 432,000 |
| 10 | 864,000 |
| 100 | 8,640,000 (8.64 × 10⁶) |
Frequently asked questions
- How many Seconds are in one Day?
- 1 Day = 86,400 Seconds.
- How many Days are in one Second?
- 1 Second = 0.00001157407407 (1.157407407 × 10⁻⁵) Days.