Is it “an hour” or “a hour”?
A and an are different forms of the indefinite article. Words where the “h” is silent, such as honor or honest, use “an” instead of “a.” Since the “h” in “hour” is silent, it is “an hour” instead of “a hour.”
- An hour ago
- An hourly wage
 
                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                