a new slang i've been hearing for something cool is
"da hora" so when you see something cool. say it is da hora lol
maybe if your teaching a little kid about time, the topic would be minutes. When i was learning spanish, we covered the minutes of the hour.
is the "the hour's minutes" wrong? why?
Grammatically, no, but it is somewhat equivalent to the English idea in phrases like "the days of the week"; we wouldn't say "the week's days".
But the days of the week have names, the minutes don't. Personally, i think "the hour's minutes" sounds better, but both don't really make much sense.
Minutes in an hour, maybe