Greggs – Rivergate Shopping Centre, Irvine – Opening Hours & Store Details Greggs is directly situated in Rivergate Shopping Centre at 5 Fullarton Street, approximately a 0.10 mile distance north from the centre of Irvine (close to Low Green). This store is an added feature to the areas of Montgreenan, Drybridge, Ravenspark, Irvine Town Centre, Dreghorn, Springside and Polnoon. Today’s (Friday) opening hours are 7:00 am until 8:30 pm. Operating times, place of business info and contact details for Greggs Rivergate Shopping Centre, Irvine can be found here.