Description
Used to return the serial number of a week within a year (1-52) for the given date. The WEEK function can be useful in various nested functions and can provide input for functions while excel modeling.
Remember not to confuse WEEKNUM function with WEEKDAY function in which number a day within the week is returned by Excel
=WEEKNUM(serial_number,return_type)
The WEEKNUM function syntax has the following argument:
- Serial_Number Required.
A date within the week.
- Return_type Optional.
A number that determines on which day the week begins. The default is 1 (Monday)
Note: Avoid directly punching dates into Excel function, instead of either use DATE function or put date within inverted commas (“”) in this sequence i.e. Month/date/year. Otherwise excel will read the date as ZERO.
