I am studying Genki I at the moment and I stumbled across the following sentence:
私はよく七時ごろうちへ帰ります
I understand that the meaning is "I often return home at around 7 o'clock". But I feel like we are missing the に particle after 七時ごろ here.
Does ごろ / ごろに replace the に particle? If so, what is the difference betwen them two?