This will be particularly useful for advanced online booking made out of season.
Winter open 10am - 3pm
Summer open 9am - 6pm
Same here, we change our closing time actually quite often depending on the sunset time so we'd love to have the possibility to set the closing time monthly as we often get reservation for high season in winter and the opposite as well.
Actually we have 4 seasons and therefore we have 4 different opening hours per year.