The phrase "top of hour", commonly used in radio broadcasting, is spelled with the letter "o" pronounced as the "uh" sound /ʌ/ and the letter "f" as the "f" sound /f/. The word "hour" is pronounced with the "ow" sound /aʊ/ and the letter "h" is silent. Therefore, it is pronounced as /tɒp əv ˈaʊə/. This phrase is used to indicate the start of a new hour and can be used to cue the start of news updates, weather reports, or other scheduled events.
The term "top of the hour" refers to the precise moment when an hour begins, typically when the hour on a clock shows zero minutes and zero seconds. It is synonymous with the expression "on the hour." This phrase is commonly used to indicate a specific time, particularly when referring to schedules or timed events.
In broadcast media, such as radio or television, "top of the hour" is crucial for indicating the start of a new hour. It often refers to the moment when news bulletins, weather updates, or other programming segments commence. At the top of the hour, broadcasters aim to provide concise and relevant information, delivering the most important headlines or announcements. This practice allows listeners or viewers to quickly catch up on the day's latest news without having to listen or watch for an extended period.
Moreover, in everyday conversations, the term "top of the hour" can be used as a reference point for timing. For instance, if someone states they will call you at the "top of the hour," it implies they will contact you right at the beginning of the next hour, rather than a few minutes later.
Overall, "top of the hour" denotes the starting point of a new hour, whether it be for broadcasting purposes or general timekeeping, and is crucial for ensuring synchronized and time-based operations.