Seconds to days
days = seconds × 0.00001157
Reverse: days to seconds
How to convert seconds to days
One second is 0.00001157 days, so multiply the number of seconds by 0.00001157. For example, 20 seconds is 20 × 0.00001157 = 0.00023148 days. To go back, divide by the same number, or multiply by 86,400.
Quick estimate
Multiplying by about 0.00001 gets within 13.6% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Time conversions come up in planning and scheduling, timesheets and pay, project estimates and working out ages or durations.
| seconds | days |
|---|---|
| 1 s | 0.00001157 d |
| 2 s | 0.00002315 d |
| 3 s | 0.00003472 d |
| 4 s | 0.0000463 d |
| 5 s | 0.00005787 d |
| 6 s | 0.00006944 d |
| 7 s | 0.00008102 d |
| 8 s | 0.00009259 d |
| 9 s | 0.00010417 d |
| 10 s | 0.00011574 d |
| 11 s | 0.00012731 d |
| 12 s | 0.00013889 d |
| 13 s | 0.00015046 d |
| 14 s | 0.00016204 d |
| 15 s | 0.00017361 d |
| 16 s | 0.00018519 d |
| 17 s | 0.00019676 d |
| 18 s | 0.00020833 d |
| 19 s | 0.00021991 d |
| 20 s | 0.00023148 d |
| 25 s | 0.00028935 d |
| 30 s | 0.00034722 d |
| 40 s | 0.00046296 d |
| 50 s | 0.0005787 d |
| 60 s | 0.00069444 d |
| 70 s | 0.00081019 d |
| 75 s | 0.00086806 d |
| 80 s | 0.00092593 d |
| 90 s | 0.00104167 d |
| 100 s | 0.00115741 d |
| 120 s | 0.00138889 d |
| 150 s | 0.00173611 d |
| 200 s | 0.00231481 d |
| 250 s | 0.00289352 d |
| 300 s | 0.00347222 d |
| 400 s | 0.00462963 d |
| 500 s | 0.00578704 d |
| 750 s | 0.00868056 d |
| 1,000 s | 0.01157407 d |
| 1,500 s | 0.01736111 d |
| 2,000 s | 0.02314815 d |
| 5,000 s | 0.05787037 d |
| 10,000 s | 0.11574074 d |
Questions
How many days are in a second?
0.00001157 days.
How do I convert seconds to days in a spreadsheet?
Put the value in A1 and type =A1*0.00001157, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.