Home / Conversion / Time
Days to seconds Converter
Enter the days, then press Calculate. The seconds stay hidden while you type.
Press Calculate after the entries are in.
What this time conversion is for
Use this page when a measurement is written in days and the next step needs seconds. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.
The factor
Multiply by the factor: 1 day = 86,400 seconds.
A worked example
10 days are 864,000 seconds. Multiply the result by the reverse factor if you want the original number back.
How to check it
Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.
The reverse conversion is seconds to days. A nearby pair in the same units is days to years. When the converted number is the input to a job, continue with the hours between two times.