noun plural
1. : an hour or time that one likes or that suits one's convenience
he comes home to lunch at all hours
2. : the very late hours of the night
stay up till all hours
noun plural
1. : an hour or time that one likes or that suits one's convenience
he comes home to lunch at all hours
2. : the very late hours of the night
stay up till all hours
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012