UnitFlip

Seconds to Days Converter

1 second ≈ 0.0000115740741 days

From
To

The calendar day is exactly 86,400 s here. Actual solar days vary by milliseconds, and leap seconds have occasionally been added to civil time.

Result

1 second equals 0.0000115741 days

How to convert seconds to days

A day here is a duration of 86,400 seconds. Unless explicitly labeled Julian, months and years use the mean Gregorian convention (365.2425 days per year; one twelfth per month), rather than the actual length of a particular calendar interval.

Formula
d = s ÷ 86400

One day corresponds to 86400 seconds, so divide by that figure. Displayed constants may be rounded; the converter uses the stored factor before rounding the result.

Example
0.000115741 d ≈ 10 ÷ 86400

The calendar day is exactly 86,400 s here. Actual solar days vary by milliseconds, and leap seconds have occasionally been added to civil time.

Seconds to days conversion table

Common values in seconds, converted to days.

Seconds converted to days
Seconds (s)Days (d)
10.000011574074
20.000023148148
50.00005787037
100.00011574074
150.00017361111
300.00034722222
600.00069444444
900.0010416667
1200.0013888889

About these units

seconds

The SI base unit of time, defined by the caesium-133 hyperfine transition frequency.

Reference: BIPM SI Brochure (9th ed.).

dayd

Exactly 24 hours, or 86,400 seconds.

Sources and precision

Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.