24-hour clock

24 Hour Clock Converter: How to Convert AM/PM to 24 Hour Time

Method 2 – Use This Chart To Convert 24 Hour Time

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.”

There are two ways of telling the time: The 12-hour clock runs from 1am to 12 noon and then from 1pm to 12 midnight. The 24-hour clock uses the numbers 00:00 to 23:59 (midnight is 00:00).

Most airlines use the 24-hour clock system when telling time. They use this system when assigning trip departures, check-in times and other forms of time designation. The 24-hour clock alleviates communication problems and is more convenient.

24-hour analog watches and clocks are still being manufactured today, and are sought after by collectors and enthusiasts. Manufacturers who make 24-hour analog watches include Glycine, Raketa, Vostok, Fortis, Poljot, Swatch, and many others.

Originally Answered: What is the purpose of 24 hour clock? The purpose of a 24hr clock is to tell the time. It’s used widely in Europe, and also by the military worldwide. There can be no mixup between 5am and 5pm for example, because there is no ‘am’ or ‘pm’, there is only 0500 hours and 1700 hours.

Military Time Conversion Chart

Hour to Day Conversion Table

Almost all countries use 24-hour clock. It’s particularly North America, UK, Egypt, India, the Philippines, Colombia, Saudi Arabia, and Australia where the 12-hour clock is the predominant form of stating the time.

ancient Egyptians

The 24-hour clock In conversation, most Brits use the 12-hour clock, as do most North Americans—so nine o’clock in the morning is “9am,” and nine o’clock in the evening is “9pm.” The day ends at 24:00 (that’s midnight), after which there’s a wee hour when the minutes tick off 0:01, 0:02, 0:03…

Most countries around the world today use the 24-hour system. However, the 12-hour format, including am and pm, is officially used in a number of countries, including the United States, Canada (except Québec), Australia, New Zealand, and the Philippines.

Yes, people in the UK use a.m. and p.m. when using a 12 hour clock. The 24-hour clock is also used and doesn’t require a.m. and p.m., but it is less commonly used.

Latin ante meridiem and post meridiem

Our 24-hour day comes from the ancient Egyptians who divided day-time into 10 hours they measured with devices such as shadow clocks, and added a twilight hour at the beginning and another one at the end of the day-time, says Lomb. “Night-time was divided in 12 hours, based on the observations of stars.

Decimal Hours-to-Minutes Conversion Chart

120 minutes

80 Minutes to Hours and Minutes 80 minutes = 1 hour and 20 minutes.

So,two and a half hour=150minutes.

How to calculate hours worked

1. Determine the start and the end time.
2. Convert the time to military time (24 hours)
3. Transform the minutes in decimals.
4. Subtract the start time from the end time.
5. Subtract the unpaid time taken for breaks.

You do this by dividing the minutes worked by 60. You then have the hours and minutes in numerical form, which you can multiply by the wage rate. For example, if your employee works 38 hours and 27 minutes this week, you divide 27 by 60. This gives you 0.45, for a total of 38.45 hours.

To add time, you add the hours together, then you add the minutes together. Because there are only 60 minutes in an hour, you cannot have a time whose minute value is greater than 60. In this case, subtract 60 minutes and add 1 more to the hour.