Why don't astronomers use everyday units to measure distances (what is an AU or a pc)? (Intermediate)
How this formula works: The WEEKNUM function takes two arguments, a date, and, optionally, an argument called return_type, which controls the scheme used to calculate the week number. See the WEEKNUM page for more information. B4 contains a date value for January 5, 2016. The DAY function returns the number 2 representing the calculated week number. Note that by default, the WEEKNUM function uses a scheme where week 1 begins on January 1, and week 2 begins on the next Sunday (when the return_type argument is omitted, or supplied as 1).
Get month from date. If you need to extract the month from a date, you can use the MONTH function. In the generic form of the formula above, the date must be in a form that Excel recognizes as a valid date. The MONTH function takes just one argument, the date from which you want to extract the month. B4 contains a date value for January 5, 2016.