To turn your store Offline, Click on the toggle button at the top right which says Online.
Choose the option when you want your store to be Online again. Your store will automatically be Online, once the selected time frame is over. Once your store is online, your customers can again place the orders. Only if you choose I’ll go online myself option, you have to manually switch your store to Online, whenever you want to. Click Confirm and your store will be Offline.
To switch your store online at any time, click on the toggle that says Offline at the top right to turn it back to Online.