Brisbane's Lord Mayor Graham Quirk said he would support a push to extend weekday and Saturday trading hours in the CBD.

The National Retailers Association is campaigning for uniformed trading hours from Noosa to Coolangatta, and west to Ipswich, which would see shops able to open from 7am to 9pm.

With the exception of late finishes on Fridays, most CBD shops currently close at 5.30pm on weekdays.

Cr Quirk said he wanted Brisbane to take advantage of the influx of new retailers who have moved in recently.