date_combo_validate in core/modules/date/date.elements.inc

Validate and update a combo element.

date_default_date in core/modules/date/date.elements.inc

Create a date object from a datetime string value.

date_parts_element in core/modules/date/date.elements.inc

Creates form elements for one or more date parts.

date_popup_element_value_callback in core/modules/date/date.elements.inc

Element value callback for date_popup element.

date_popup_input_date in core/modules/date/date.elements.inc

Helper function for extracting a date value out of user input.

date_select_element_process in core/modules/date/date.elements.inc

Flexible date/time drop-down selector.

date_select_element_value_callback in core/modules/date/date.elements.inc

Element value callback for date_select element.

date_select_input_date in core/modules/date/date.elements.inc

Helper function for creating a date object out of user input.

date_text_input_date in core/modules/date/date.elements.inc

Helper function for creating a date object out of user input.

date_views_filter_handler_simple::date_select_validate in core/modules/date/views/date_views_filter_handler_simple.inc

Validation hook for exposed filters that use the select widget.

_date_popup_date_granularity in core/modules/date/date.elements.inc

Date popup date granularity.

_date_popup_process_time_part in core/modules/date/date.elements.inc

Process the time portion of the element.

_date_popup_time_granularity in core/modules/date/date.elements.inc

Date popup time granularity.