Three weekdays of midnight trading in the lead up to Christmas start from today.
Shops across Adelaide are able to open until midnight today Thursday 19 December, Friday 20 December and Monday 23 December.
The dates were chosen after consultation between businesses and unions.
Up to 900,000 shoppers are expected to spend approximately $35 million in Rundle Mall over the next five days.
This is in addition to the midnight trading that was available on Black Friday on 29 November.
Legislation allowing shops to open until midnight on Black Friday and on up to three weekdays in December came into effect on 1 November 2022.
The Shop Trading Hours (Extension of Hours) Amendment Act 2022 also enabled shops across Adelaide to open at 9am on Sundays and to permanently allow Boxing Day trading in the city and suburbs, with the exception of larger supermarkets.
Previously, shops across Adelaide opened on Sundays from 11am to 5pm and only shops in the Adelaide CBD could open on Boxing Day, trading from 11am to 5pm.
The rest of regional SA is deregulated and shops can trade whenever they choose.