Time Converter
Days to Seconds Converter
Exact conversionReverse modeZero configuration
1 day
86,400
seconds
Exact (24 × 60 × 60)
How to Convert Days to Seconds
Converting days to seconds uses a simple, exact formula. Since one day equals precisely 24 hours, one hour equals 60 minutes, and one minute equals 60 seconds, you get 1 day = 86,400 seconds.
Formula: Seconds = Days × 86,400
1 day = 24 × 60 × 60 = 86,400 seconds
Why 86,400?
The number 86,400 is a fundamental constant in timekeeping. It comes directly from the division of a day into 24 hours of 60 minutes each, with 60 seconds per minute. This exact value is used in programming (Unix timestamps count seconds since January 1, 1970), databases, scientific calculations, and more.
Hours/day24
Minutes/day1,440
Seconds/day86,400
Days to Seconds Conversion Table
Pre-computed exact conversions for common values.
| Days | Seconds | Minutes | Hours |
|---|---|---|---|
| 1 | 86,400 | 1,440 | 24 |
| 2 | 172,800 | 2,880 | 48 |
| 3 | 259,200 | 4,320 | 72 |
| 5 | 432,000 | 7,200 | 120 |
| 7 | 604,800 | 10,080 | 168 |
| 10 | 864,000 | 14,400 | 240 |
| 14 | 1,209,600 | 20,160 | 336 |
| 30 | 2,592,000 | 43,200 | 720 |
| 60 | 5,184,000 | 86,400 | 1,440 |
| 90 | 7,776,000 | 129,600 | 2,160 |
| 365 | 31,536,000 | 525,600 | 8,760 |