Hint # 1.
I assume that you know what the mnemonic is, but are having trouble translating it into glyphs. If you have read everything in the classroom with all the glyph posters, you should have read the poster with a picture of a clock face. Look in your map notes and see if you can find it there. If not, you didn't read it.
Hint #2.
You should also have read Coleman's note to Bursar where he writes "As long as you remember how to tell the time, you should have no troubles ..."
Hint #3.
Marry up the nouns in the mnemonic with the glyphs on the clock face.