The DAYS360 function calculates the number of days between two dates using a 360-day year (12 30-day months), which is commonly used in accounting computations. If your accounting system is based on twelve 30-day months, you can use this function to assist you calculate payments.
The DATEVALUE function transforms a text date into a serial number that Excel can recognise as a date. The formula =DATEVALUE("1/1/2008"), for example, produces 39448, the date's serial number.
The DATEVALUE function in Excel turns a text string date into a valid Excel date. For example, in the Excel date system, the formula =DATEVALUE("3/10/1975") returns a serial number (27463) that reflects March 10, 1975.