How is train timing calculated?
For example, 10 40 hours = 10:40 a.m., 08 20 hours = 8:20 a.m., 11 30 hours = 11:30 a.m. But between 12 noon and 12 midnight to convert the 24-hour clock time into 12-hour clock time, we subtract 12 from the 24-hour time. For example, 19:30 hours = 19:30 – 12:00 = 7:30 p.m.
How can I remember the 24-hour clock?
Add 12 to the hours between 1:00 and 11:59 PM and eliminate “PM.” For the afternoon, evening, and night hours, simply add 12 to the 12-hour time to convert it to 24-hour time. Also, eliminate “PM.” That means that 2:57 PM would become 14:57 and 11:02 would become 23:02.
What is the time in 24-hour clock now?
Easy to Read Military Time Chart
| 12-hour am-pm clock | 24-hour military time |
|---|---|
| 6:00 pm | 18:00 |
| 7:00 pm | 19:00 |
| 8:00 pm | 20:00 |
| 9:00 pm | 21:00 |
What is 12 AM in 24-hour time?
24-hour clock
| 24-hour clock | 12-hour clock |
|---|---|
| 00:00 | 12:00 (midnight) 12:00 a.m. (start of the day) |
| 01:00 | 1:00 a.m. |
| 02:00 | 2:00 a.m. |
| 03:00 | 3:00 a.m. |
What is 12-hour time called?
ante meridiem
Is 12 at midnight AM or PM?
The American Heritage Dictionary of the English Language states “By convention, 12 AM denotes midnight and 12 PM denotes noon. Because of the potential for confusion, it is advisable to use 12 noon and 12 midnight.”
Why do clocks have AM and PM?
Why do we use the a.m.-p.m. system for telling time? Early mechanical clocks showed all 24 hours, but over time, clockmakers found the 12-hour system simpler and cheaper. Of course, a.m. stands for ante meridiem, which is Latin for “before midday.” And p.m. means post meridiem — “after midday.”
What is Einstein’s concept of time?
While most people think of time as a constant, physicist Albert Einstein showed that time is an illusion; it is relative — it can vary for different observers depending on your speed through space. Time provides another coordinate — direction — although conventionally, it only moves forward.