Everywhere I look, Awakea is defined as being from 10:00 a.m. to 2:00 p.m. And 'Auinalā is from 2:00 p.m. to 6:00 p.m.
Yet in Telling-Time, Duo says that "He wants the book at 3 pm.="Makemake ʻo ia i ka puke i ka hola ʻekolu o ke awakea." I wonder why the correct answer isn't: "Makemake ʻo ia i ka puke i ka hola ʻekolu o ka 'Auinalā".
I've noticed that Duo also seems to consider 'auinalā to end at 5:00 p.m, and thus Ahiahi to start at 5pm rather than 6 pm.
Still getting confused by Duo's 'time' section so I checked my books as well, and came up with a few variants, it seems that pesky "i' is needed by some authors and not by others.
Hapalua hola [number] Half-past [number] (Hapa=half, lua=2)
Hapalua hola ʻekahi Half-past one. 1:30.
Hapalua i hola ʻekahi Half-past one. 1:30. (p70 ʻŌlelo hou)
Hapahā i hala ka hola [number] Quarter-past [number] (Hapahā=quarter, i hala = past)
Hapahā i hala ka hola ʻekahi Quarter-past one. 1:15.
Hapahā i hala ‘ekahi Quarter-past one. 1:15. (p70 ʻŌlelo hou)
Hapahā hola [number] Quarter to [number] ( p209 Ka lei haʻaheo.)
Hapahā i ka hola [number] Quarter to [number] o’clock. (p70 ʻŌlelo hou)
Hapahā i hola [number] Quarter to [number]
Apparently one can also say "Hapahā ma mua o ka hola 'ekolu" (A quarter before 3).
And in another Q&A on Duo Iʻve read that to express the time ‘til we can also say it in two more complicated(!) ways:
1.Hapahā i koe kani ka hola [number]
2.Ua hala ka ʻekolu hapahā i ka hola [number]
And, finally:
Q: How do you say "Almost”?
A: Kokoke means "almost" both in time and other situations. So you can say "Kokoke pau ka papa" (The class is almost done) as well as:
Kokoke (ka) hola 'elua" It's almost 2 o'clock.
I've read that:
Kakahiaka literally means "Breaking shadow".
Awakea is the name of the god who opened the gate and let the sun in.
ʻAuinalā literally means "Declining sun".
Ahiahi. I've no reference for this, but since one translation of Ahi is 'to destroy by fire' I like to think of a big burst of sunset out over the ocean that ends the day.
I've seen the same things as you, it seems! I've also heard awakea is the part of the day "when the sun is hottest." It's probably up to interpretation in real life, but Duolingo shouldn't do that haha