DATETIME_ADD(<DateTime>, <Number>, <Part>)
DATETIME_SUBTRACT(<DateTime>, <Number>, <Part>)
DATETIME_DIFF(<DateTime>, <DateTime>, <Part>)
EXTRACT(<DateTime>, <Part>)
EXTRACT_DATE(<DateTime>)
EXTRACT_TIME(<DateTime>)
DATETIME_TRUNC(<DateTime>, <Part>)
LAST_DAY(<DateTime>, <Part>)