Date and time parts – DAX Guide
DAY: Returns a number from 1 to 31 representing the day of the month.
MONTH: Returns a number from 1 (January) to 12 (December) representing the month.
YEAR: Returns the year of a date as a four digit integer.
WEEKDAY: Returns a number identifying the day of the week of a date.
HOUR: Returns the hour as a number from 0 (12:00 A.M.) to 23 (11:00 P.M.).
MINUTE: Returns a number from 0 to 59 representing the minute.
SECOND: Returns a number from 0 to 59 representing the second.