Convert day to second
1 d = 86,400 s
1 d = 86,400 s
1 d in every time unit
| Planck time | 1.6026e+48 tP |
| attosecond | 8.6400e+22 as |
| femtosecond | 8.6400e+19 fs |
| picosecond | 8.6400e+16 ps |
| nanosecond | 86,400,000,000,000 ns |
| shake | 8,640,000,000,000 shake |
| microsecond | 86,400,000,000 µs |
| millisecond | 86,400,000 ms |
| second | 86,400 s |
| minute | 1,440 min |
| hour | 24 h |
| sidereal day | 1.0027 sd |
| day | 1 d |
| week | 0.14286 wk |
| fortnight | 0.071429 fn |
| month | 0.032855 mo |
| year | 0.0027379 yr |
| decade | 0.00027379 dec |
| century | 0.000027379 cent |
| millennium | 0.0000027379 mil |
| megayear | 2.7379e-09 Myr |
| eon | 2.7379e-12 eon |
How the conversion works
Multiply by 86,400 to go from day to second, or divide by it to go back. Every conversion on this site routes through the SI value (s) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? second to day — 1 s = 0.00001157407407 d.
day to second — common values
| 1 d | 86,400 s |
| 2 d | 172,800 s |
| 3 d | 259,200 s |
| 5 d | 432,000 s |
| 10 d | 864,000 s |
| 15 d | 1,296,000 s |
| 20 d | 1,728,000 s |
| 25 d | 2,160,000 s |
| 50 d | 4,320,000 s |
| 75 d | 6,480,000 s |
| 100 d | 8,640,000 s |
| 250 d | 21,600,000 s |
| 500 d | 43,200,000 s |
| 1000 d | 86,400,000 s |