From the book, "Learn Hawaiian at Home." by Kahikāhealani Wight, Speak Hawaiian today!! page 2

Aloha kakahiaka =..... Good morning (6 a.m. to 10 a.m.)

Aloha awakea = .........Good noontime (10 a.m. to 2 p.m.)

Aloha ʻauinalā = .........Good afternoon (2 p.m. to 6 p.m.)

Aloha ahiahi = Good evening (6 p.m. to 10 p.m.)

From "Hawaiian Language Fundamentals, ʻŌLELO ʻŌIWI by Hōkūlani Cleeland, page 22

o ka pō = at night (p.m.)

o ke aumoe = late at night, midnight (p.m.)

o ka wanaʻao = after midnight to dawn (a.m.)