DAYS360

Returns the difference between two days based on the 360-day year used in some financial interest calculations.

Sample Usage

DAYS360(DATE(1969,7,16),DATE(1969,7,24),1)

DAYS360(A2,A3)

DAYS360(1,270,1)

Syntax

DAYS360(start_date, end_date, [method])

  • start_date - The start date to consider in the calculation. Must be a reference to a cell containing a date, a function returning a date type, or a number.

  • end_date - The end date to consider in the calculation. Must be a reference to a cell containing a date, a function returning a date type, or a number.

  • method - [ OPTIONAL - 0 by default ] - An indicator of what day count method to use.

    • 0 indicates the US method - Under the US method, if start_date is the last day of a month, the day of month of start_date is changed to 30 for the purposes of the calculation. Furthermore, if end_date is the 31st day of a month and the day of the month of start_date is earlier than the 30th, end_date is changed to the first day of the month following end_date. Otherwise, the day of month of end_date is changed to 30.
    • Any other value indicates the European method - Under the European method, any start_date or end_date that falls on the 31st of a month has its day of month changed to 30.

Notes

  • This function is mostly used in a financial setting, for calculation involving fixed-income securities. Other usage is likely incorrect.

  • Ensure that the inputs to the function are either references to cells containing dates, functions which return date objects such as DATE, DATEVALUE or TO_DATE, or date serial numbers of the type returned by the N function. Google Sheets represents dates and times as numbers; while conversion is automatic when a human-readable date is entered into a cell, functions only accept literal dates in numeric format.

  • DAYS360 does not auto-convert number formats in the same way that Google Sheets does upon direct entry into cells. Therefore, DAYS360(10/10/2000,10/10/2001) is interpreted as DAYS360(0.005,0.00499750124938), the quotients of 10 divided by 10 divided by 2000 and 2001, respectively.

See Also

YEARFRAC: Returns the number of years, including fractional years, between two dates using a specified day count convention.

TO_DATE: Converts a provided number to a date.

N: Returns the argument provided as a number.

DATEVALUE: Converts a provided date string in a known format to a date value.

DATE: Converts a year, month, and day into a date.

Examples

Returns the difference between two dates using different method.

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