Convert Days to Seconds

Enter your day value in the form below to get the value calculated in seconds.

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Results in Seconds:
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1 day = 86,400 sec

How to Convert Days to Seconds Using an Easy Conversion Formula

Calendars document the days in a month

Convert days to seconds with this simple formula:

seconds = days × 86,400

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 86,400 seconds, so to convert simply multiply by 86,400.

For example:
5 day = (5 × 86,400) = 432,000 sec

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 1 day. A second is a time measurement and can be abbreviated as sec, for example 1 sec.

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

Day Measurements and Equivalent Second Conversions

Common day values converted to the equivalent second value
Days Seconds
1 day 86,400 sec
2 day 172,800 sec
3 day 259,200 sec
4 day 345,600 sec
5 day 432,000 sec
6 day 518,400 sec
7 day 604,800 sec
8 day 691,200 sec
9 day 777,600 sec
10 day 864,000 sec
11 day 950,400 sec
12 day 1,036,800 sec
13 day 1,123,200 sec
14 day 1,209,600 sec
15 day 1,296,000 sec
16 day 1,382,400 sec
17 day 1,468,800 sec
18 day 1,555,200 sec
19 day 1,641,600 sec
20 day 1,728,000 sec
21 day 1,814,400 sec
22 day 1,900,800 sec
23 day 1,987,200 sec
24 day 2,073,600 sec
25 day 2,160,000 sec
26 day 2,246,400 sec
27 day 2,332,800 sec
28 day 2,419,200 sec
29 day 2,505,600 sec
30 day 2,592,000 sec
31 day 2,678,400 sec
32 day 2,764,800 sec
33 day 2,851,200 sec
34 day 2,937,600 sec
35 day 3,024,000 sec
36 day 3,110,400 sec
37 day 3,196,800 sec
38 day 3,283,200 sec
39 day 3,369,600 sec
40 day 3,456,000 sec

More Time Conversions

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