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