Open & Close Hours: BlockHour

Other hours apps only hide buttons or show popups — shoppers can still check out. BlockHour enforces your hours at checkout with Shopify Functions: orders outside your hours are rejected before payment, on any Shopify store, with no theme code. Set per-day hours in 30-minute steps, including overnight (e.g. 22:00–02:00). Add holidays by date range, close instantly with one toggle, and customize the message shoppers see. Install, set your hours, and activate the checkout rule — done.