Returns the day of the week as Sunday (1) to Saturday (7).
date (required) The date from which to return the weekday component.
timezone (optional) Name of IANA timezone to get the date part at, e.g. “America/Los_Angeles”. When calculating a timezone, input dates are treated as UTC.
NOTE: Sunday is 1 and Saturday is 7.
Date functions are useful for analyzing date input and extracting individual time components, like year or minute, from date objects.