Convert Seconds to Days
1 second is 0.000012 d. One second is exactly 0.0000115740740741 days.
One second is 1.1574 × 10^-5 days. To convert seconds to days, multiply by 1.1574 × 10^-5; to go the other way, divide by 1.1574 × 10^-5 or multiply by 86400. The factor is exact rather than rounded: it follows from BIPM SI Brochure. The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.
Factor checked against the defining standard · How we check
- Seconds × 1.1574 × 10^-5
value * 0.00001157407407410 d
1 second in every time unit
| Unit | Value | Exact factor |
|---|---|---|
| seconds (as entered) | 1 s | — |
| minutes | 0.01666666667 min | × 0.0166666666667 |
| hours | 0.0002777777778 h | × 0.000277777777778 |
| days | 0.00001157407407 d | × 0.0000115740740741 |
| weeks | 0.000001653439153 wk | × 0.00000165343915344 |
| months | 0.0000003802648621 mo | × 0.000000380264862082 |
| years | 0.00000003168873851 yr | × 0.0000000316887385068 |
Factors are entered by hand from BIPM SI Brochure rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert seconds to days?
- 1.Take the measurement in seconds.
- 2.Multiply by 1.1574 × 10^-5 — that is how many days fit in one second.
- 3.To go back the other way, divide by 1.1574 × 10^-5, or multiply by 86400.
Seconds to days conversion table
| Seconds | Days |
|---|---|
| 1 s | 0.000012 d |
| 2 s | 0.000023 d |
| 3 s | 0.000035 d |
| 4 s | 0.000046 d |
| 5 s | 0.000058 d |
| 6 s | 0.000069 d |
| 7 s | 0.000081 d |
| 8 s | 0.000093 d |
| 9 s | 0.000104 d |
| 10 s | 0.000116 d |
| 12 s | 0.000139 d |
| 15 s | 0.000174 d |
| 20 s | 0.000231 d |
| 25 s | 0.000289 d |
| 50 s | 0.000579 d |
| 100 s | 0.001157 d |
What are seconds and days?
- Second (s)
- The SI base unit of time, fixed since 1967 by the caesium-133 hyperfine transition frequency of 9,192,631,770 Hz.
- Day (d)
- Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
Source: BIPM SI Brochure — the second, and units accepted for use with the SI
Questions people actually ask
- How many days are in a second?
- 1.1574 × 10^-5. Exactly 86,400 seconds by convention. A solar day runs a few milliseconds long or short, which is what a leap second corrects.
- How do I convert days back to seconds?
- Divide by 1.1574 × 10^-5, or multiply by 86400 — they are the same operation.
Other time conversions
Days to seconds — the same conversion the other way.