South Australia will drop the extended shopping introduced to encourage physical distancing during the coronavirus pandemic.

Treasurer Rob Lucas says shops will return to normal trading arrangements from Sunday with health officials ruling the longer hours no longer necessary.

Under a series of 30 exemptions first introduced in March, all shops were permitted to open earlier on Sunday and trade later on Saturdays and Sundays.

“For several months, the public health advice was clear and that was extended trading supported important physical distancing,” Lucas said on Tuesday.

“However, given the recent significant lifting of other restrictions in South Australia, public health advice no longer considers this extra measure necessary.”