WP_Customize_Date_Time_Control::format_gmt_offset( float $offset ): string

Source

public function format_gmt_offset( $offset ) {
	if ( 0 <= $offset ) {
		$formatted_offset = '+' . (string) $offset;
	} else {
		$formatted_offset = (string) $offset;
	}
	$formatted_offset = str_replace(
		array( '.25', '.5', '.75' ),
		array( ':15', ':30', ':45' ),
		$formatted_offset
	);
	return $formatted_offset;
}

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