Without this setting, your catalogue takes orders at 3am. Set your hours and customers see the shop is closed and can't check out outside working hours.
The screen lists all seven days. For each one:
If the hours are the same every day, use Set same time for all at the top: enter it once and Jarbas applies it to every day already switched on.
Tap Save at the end.
Within your hours, the catalogue works as normal.
Outside them, the shop shows as closed and customers can't complete an order. They can still browse products and see prices — they just can't check out.
If you turn Opening Hours on and don't fill in any days, a red warning icon appears next to the setting's name.
It matters: with the switch on and no days set, the shop is closed all the time — and nobody can buy. Either fill in the days, or turn the switch off.
They work. If you trade from 6pm to 2am, set opening 18:00 and closing 02:00 — Jarbas understands the shift runs past midnight.
Leave the switch off. The catalogue takes orders at any hour and you reply when you can. That's the right call for made-to-order work with no fixed hours.