The days360 function returns the number of days between two given dates based on a 360-day year. For example, between February 15 and March 15, days360 returns 30 days, even though the number of days between these dates is actually 28 or 29.


The day360 function is useful for computing payments in accounting systems that simplify the calendar year into twelve equal 30-day months.




(days360 start-Date end-Date )

Arguments Name Type Description
Argument:start-dateDate Text String The beginning date of the time period for which you want to compute the number of days.
Argument:end-dateDate Text String The ending date of the time period for which you want to compute the number of days.


Returns the number of days between start-date and end-date If the end-date is earlier than the start-date, the return value is a negative value.



Here are a number of links to Lambda coding examples which contain this instruction in various use cases.


Argument Types

Here are the links to the data types of the function arguments.

Date String Text Number

Here are also a number of links to functions having arguments with any of these data types.

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