At every hour exactly, for example 'the train will leave at 1pm or 2pm and so on - on the hour.
"5p per hour" is not an acronym so please amend your question.
Per means "for each", so maybe you walk at 4 miles per hour.
"An hour" is correct. That is because the "h" is not pronounced, so "hour" starts with a vowel sound.
If you mean 2/3 of an hour then there are 40 minutes
At every hour exactly, for example 'the train will leave at 1pm or 2pm and so on - on the hour.
"5p per hour" is not an acronym so please amend your question.
Usually it can mean a VERY bad hour............
Do you mean the U.S.? If so anywhere from a 10-20 hour flight.
If you mean 80 mins to an hour, it means it is an hour and 20 minutes to a certain hour.
If you mean 3/4 of an hour then it is equal to 45 minutes
8 hours and one quarter of an hour. So that is 8 hours and 15 minutes.
Hour
it normally doesnt mean much if its only an hour
Miles per hour Miles-Per-Hour
Per means "for each", so maybe you walk at 4 miles per hour.
If you mean of an hour then 0.25 of an hour is 15 minutes