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 which day count method to use.

  • 0 indicates the US method – under the US method, if the start_date is the last day of a month, the day of month of the start_date is changed to 30 for the purposes of the calculation. Furthermore, if the end_date is the 31st day of a month and the day of the month of the start_date is earlier than the 30th, the end_date is changed to the first day of the month following the end_date. Otherwise, the day of month of the 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 the month changed to 30.

Notes

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

• Ensure that the inputs to the function are either references to cells containing dates, functions that 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. Whilst 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 as 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 into a date.

N: Returns the argument provided as a number.

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

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

Examples

Returns the difference between two dates using a different method.