The Perth Modern Campus shop set hours are Monday and Thursday 8.00am-11.30am excluding public holidays and school holidays the shop is closed. Please see link below for the Lowes store locator which shows the trading hours for Perth Modern Campus Shop:

https://www.lowes.com.au/storelocator/perth-modern-school-on-campus/

Lowes extend trading days for promotional events, i.e. 20% sale days and orientations days.

Extended trading days are adevrtised on the Perth Modern School Facebook page - 

The Lowes Kardinya Park shop is open 7 days a week, see link below for trading hours:

https://www.lowes.com.au/storelocator/kardinya-park/