Le Ore del Giorno sounds like it could be the name of an Italian TV soap opera. :)
Le Ore del Giorno
Could "le ore" be written as "l'ore"? Or is the contraction only for "la" and "lo"?
Yes, "le" isn't usually elided even in speech, i.e. the "e" is usually pronounced; then again, it could become l' in some literary contexts, e.g. poetry.
Why is not l'ora as l'orso, l'orologio, etc.? I believe that every time the word begins with vowel the article becomes " l' ". In this sentence I write "gli ore..." since I thought it was l'ora