Agriculture Department ATS Past Papers Crop Reporter General Knowledge MCQs In 24 hours clock 21 hour mean? July 28, 2022 Admin No Comments A: 08:00 AM B: 09:00 PM C: 09:00 AM D: 08:00 PM Correct Answer: b Short Details: There are two types of clocks, which are: 12 Hour Clock 24 Hour Clock View More Details >>