What is the term used to indicate time in hours and minutes on a clock?

The term "O'clock" is used to indicate time in hours and minutes on a clock. When we tell time, we often say something like "It's 3 o'clock," which means it is exactly three hours after midnight or noon with no additional minutes. The use of "O'clock" allows us to express the time in a clear and straightforward way.

In contrast, "Seconds" refers to a smaller unit of time and indicates the divisions of minutes rather than being a standalone expression of time on a clock. "Minute" is another unit of time, but it does not provide the information about the full hour, just the part of an hour. An "Hourglass" is a device for measuring time, but it does not indicate time in the context of a specific hour and minute as a clock does. Therefore, "O'clock" is the correct term when expressing time in that format.