# DAYS360 Function in Excel

The DAYS360 function in Excel returns the number of days between two dates based on a 360-day year (12 x 30 months). Calculations based on a 360-day year comes for certain accounting Reasons where all 12 months are considered to have 30 days.

#### Syntax for DAYS360 Function in Excel

DAYS360( start_date, end_date, [method] )

 start_date The start of the period. end_date The end of the period. [method] An optional logical argument, which gives the method to be used in the calculation. IF FALSE US Method is used, IF TRUE European Method is used

#### Example of DAYS360 Function in Excel:

##### Results

• Row number 2 calculates Difference between Jan-1-2017 to Feb-1-2017 which actually 31 days but Because of DAYS360 Function we get 30 days
• Start Date has to be less than end date or else it will result in negative vale which -30 days in row number 3.
• If Start Date and End Date are same then difference between two days will be 0 days Which is shown in row number 4
• Row number 5 calculates difference between Feb-1-2015 to Feb-1-2017, which are Actually 731 days, Because of DAYS360 Function we get 720 days

#### Note on Errors of DAYS360 Function in Excel:

• #NUM! – Occurs if one or both of the supplied end_date and start_date arguments are numeric values, but are not recognized as valid dates.
• #VALUE! – Occurs if one or both of the supplied start_date and end_date arguments are text values that cannot be interpreted as dates
• #VALUE! –Also occurs when Supplied [Method] Argument is non Logical or non-Numeric.