Ferry from Macau to Hongkong (back & forth)

My friends & I will be in Macao from Sept 25 - 28 and we plan to go to Hongkong (back & forth) on Sept 27 for some sightseeing also. Is there a ferry going early morning to HK & returning to Macau in the afternoon? What time is Macau's early trip to HK & is there a 6 or 7PM ferry going back to Macau? We will appreciate your earliest response. Thank you!