Method: Normalize “*_between” parameters to “*_min” and “*_max” for numeric values and “*_after” and “*_before” for date values.

Method: Validate a “*_between” range argument (an array with 2 numeric items).

Method: Validate a “*_between” range argument (an array with 2 date items).

Method: Returns a new DateTime object representing the next hour start/previous hour end if reversed.

Method: Returns a new DateTime object representing the next day start, or previous day end if reversed.

Method: Returns DateTime object representing the next week start, or previous week end if reversed.

Method: Returns a new DateTime object representing the next month start, or previous month end if reversed.

Method: Returns a new DateTime object representing the next quarter start, or previous quarter end if reversed.

Method: Return a new DateTime object representing the next year start, or previous year end if reversed.

Method: Returns beginning of next time interval for provided DateTime.