Set current date as default value for datepicker field

Ultimate Member functions.php

/**
 * Set current date if date value is empty
 *
 * @param string	$value		"Field Value"
 * @param string	$default	"Field Key"
 * @param string	$key			"Field Type"
 * @param string	$type			"Field Default Value"
 * @param array		$data			"Field Data"
 * @return string
 */
function um_field_value__default_datetime( $value, $default, $key, $type, $data ) {

	if ( empty( $value ) && empty( $default ) && $type === 'date' ) {
		$value = date( 'Y/m/d' );
	} elseif ( empty( $value ) && empty( $default ) && $type === 'time' ) {
		$value = date( 'H:i' );
	}

	return $value;
}
add_filter( 'um_field_value', 'um_field_value__default_datetime', 10, 5 );