Calendars document the days in a month

Convert Days to Seconds

Convert from days to seconds with this simple formula:
seconds = days × 86400
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1 Day = 86,400 Seconds

Learn How to Convert Days to Seconds Using our Conversion Formula

Converting a day time measurement to a second measurement involves multiplying your time by the conversion ratio to find the result. A day is equal to 86400 seconds, so to convert simply multiply by 86400.

For example, 5day = (5 × 86400) = 432,000sec.

Days and seconds are both units used to measure time. Learn more about time and find more time measurement conversion calculators. A day is a time measurement and can be abbreviated as day, for example 1day. A second is a time measurement and can be abbreviated as sec, for example 1sec.

days and seconds are units used to measure time
Convert Seconds to Days

More Time Conversions

Convert to Years Time
1day is equal to 0.002738 years
Convert to Months Time
1day is equal to 0.032855 months
Convert to Weeks Time
1day is equal to 0.142857 weeks
Convert to Hours Time
1day is equal to 24 hours
Convert to Minutes Time
1day is equal to 1,440 minutes
Convert to Milliseconds Time
1day is equal to 86,400,000 milliseconds

Day Measurements and Equivalent Second Conversions

Common day values converted to the equivalent second value
Days Seconds Days Seconds Days Seconds
1 86,400 21 1,814,400 41 3,542,400
2 172,800 22 1,900,800 42 3,628,800
3 259,200 23 1,987,200 43 3,715,200
4 345,600 24 2,073,600 44 3,801,600
5 432,000 25 2,160,000 45 3,888,000
6 518,400 26 2,246,400 46 3,974,400
7 604,800 27 2,332,800 47 4,060,800
8 691,200 28 2,419,200 48 4,147,200
9 777,600 29 2,505,600 49 4,233,600
10 864,000 30 2,592,000 50 4,320,000
11 950,400 31 2,678,400 51 4,406,400
12 1,036,800 32 2,764,800 52 4,492,800
13 1,123,200 33 2,851,200 53 4,579,200
14 1,209,600 34 2,937,600 54 4,665,600
15 1,296,000 35 3,024,000 55 4,752,000
16 1,382,400 36 3,110,400 56 4,838,400
17 1,468,800 37 3,196,800 57 4,924,800
18 1,555,200 38 3,283,200 58 5,011,200
19 1,641,600 39 3,369,600 59 5,097,600
20 1,728,000 40 3,456,000 60 5,184,000