Days to Seconds
1 d = 86,400 s. Edit either value to convert instantly.
Conversion formula
s = d × (86,400) × (1)1 d = 86,400 s
day (d)
Day is a unit of time: 1 d = 86,400 s.
Source: BIPM, The International System of Units (SI), 9th edition
second (s)
The second is the SI base unit of time; 60 seconds make 1 minute and 3,600 seconds make 1 hour.
Source: BIPM, The International System of Units (SI), 9th edition
Conversion table
| d | s |
|---|---|
| = 86,400 | |
| = 172,800 | |
| = 432,000 | |
| = 864,000 | |
| = 1,296,000 | |
| = 1,728,000 | |
| = 2,160,000 | |
| = 2,592,000 | |
| = 3,456,000 | |
| = 3,888,000 |
| d | s |
|---|---|
| = 4,320,000 | |
| = 5,184,000 | |
| = 6,048,000 | |
| = 6,912,000 | |
| = 7,776,000 | |
| = 8,640,000 | |
| = 12,960,000 | |
| = 13,824,000 | |
| = 14,688,000 | |
| = 15,552,000 |
Frequently asked questions
How many seconds are in 1 day?
1 d = 86,400 s. s = d × (86,400) × (1)
How do I convert d to s?
s = d × (86,400) × (1)
Is 1 day bigger than 1 second?
1 d = 86,400 s.
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