# ››Convert day to second

 day second

How many day in 1 second? The answer is 1.15740740741E-5.
We assume you are converting between day and second.
You can view more details on each measurement unit:
day or second
The SI base unit for time is the second.
1 day is equal to 86400 second.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between days and seconds.
Type in your own numbers in the form to convert the units!

# ››Date difference between calendar days

You may also want to find out how many days are between two dates on the calendar. Use the date calculator to get your age in days or measure the duration of an event.

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# ››Definition: Day

A continous period of 24 hours which, unless the context otherwise requires, runs from midnight to midnight.

# ››Definition: Second

The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.

# ››Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!