Today is the fifteenth day of Ramadan 15th, it's its a sunny day. I woke up early this morning in order to go to work. I was late because i have I waited for the tramway for a while.

Corrections: 

I changed "15" to the "fifteenth day of" because it is more correct.

"It's" means that something possesses something else. So instead you can write "its" or "it is"

I capitolized the "i"

Great job!