24 Hour Clock Converter

24 Hour Clock Converter

Convert 24 Hour Time to 12 Hour Time and Vice Versa

Type into the input boxes below to convert 24-hour time to 12-hour time and vice versa.



Time is an important concept in all our lives. Without time there will be no schedules, no appointments. To plan activities, we need to keep time.

There are two main ways of keeping time. 12-hour system and the 24-hour system. Whichever system you use works the same way. Seconds flow into minutes, and minutes into hours. Every time machine in the world bases their functions on these principles.

24-Hour Clock

The 24-hour time, also called military time in the United States of America, is becoming popular. Only a few countries do not recognize the 24-hour clock as their standard for keeping time.

The 24-hour system of keeping time does not divide 24 hours into two periods. Here, time starts at midnight (00:00) and runs until one minute before midnight (23:59). This means there is no repetition of numbers.

How does the 24-hour clock work?

In the 24-hour clock, there are four numbers divided into two parts by a colon (:). The first two parts tell you what hour of the day it is. The last two digits tell you how many minutes into that hour we have gone. For instance, 11:59 tells you we are in the 11th hour of the day and have gone 59 minutes into that hour.

Another instance is 14:23, which tells you we are in the 14th hour of the day, and we have gone 23 minutes into that hour. We notice the difference between telling time using the 12-hour system and the 24-hour system at periods beyond midday.

This is because, while the 12-hour system starts afresh from "1" after midday, the 24-hour system continues counting from "13" until the 24-hours is complete.

What is the main advantage of 24 hour time?

One major advantage the 24-hour system has over the 12-hour system is the fact that it eradicates the confusion associated with the 12-hour system.

Do you get confused or get the urge to ask morning or night when a friend asks you to meet up by 8? The 24-hour system of keeping time removes this confusion.

This is because when your friend asks to meet up by 08:00, you know that your friend means 8:00 AM. Otherwise, your friend would ask to meet at 20:00, which means 8:00 PM.

What are the disadvantages of the 24-hour clock?

While we are comfortable texting the time using a 24-hour system, the reverse is sometimes the case when saying it. When a friend asks for the time, it becomes awkward saying the time is 19:00 instead of saying 7:00. So the disadvantage of the 24-hour clock is the difficulty in expressing the time using this system.

What is the easiest way to read the 24-hour clock?

Reading the 24-hour clock is easy. You read it by pronouncing the number-word for the first two digits, followed by the number word for the second two digits.

In the case where the two last digits are zeros, you pronounce the number word of the first two digits, followed by the word hundred. For instance, you would read 16:45 as sixteen forty-five and 16:00 as sixteen hundred.

For times earlier than 10:00, like 09:00, you read the time as zero nine hundred.

How to Convert 24 Hour Time to 12 Hour Time?

To convert 24-hour time to 12-hour time, follow the instructions below:

  • From 0:00 to 0:59 - Add 12 and AM
  • From 1:00 to 11:59 - Add AM
  • From 12:00 to 12:59 - Add PM
  • From 13:00 to 23:59 - Subtract 12 and add PM

You can also use an online 24 hour to 12 hour converter for the 24-hour time to 12-hour time conversion.

What time is 00:00?

12:00 AM

What time is 01:00?

1:00 AM

What time is 02:00?

2:00 AM

What time is 03:00?

3:00 AM

What time is 04:00?

4:00 AM

What time is 05:00?

5:00 AM

What time is 06:00?

6:00 AM

What time is 07:00?

7:00 AM

What time is 08:00?

8:00 AM

What time is 09:00?

9:00 AM

What time is 10:00?

10:00 AM

What time is 11:00?

11:00 AM

What time is 12:00?

12:00 PM

What time is 13:00?

1:00 PM

What time is 14:00?

2:00 PM

What time is 15:00?

3:00 PM

What time is 16:00?

4:00 PM

What time is 17:00?

5:00 PM

What time is 18:00?

6:00 PM

What time is 19:00?

7:00 PM

What time is 20:00?

8:00 PM

What time is 21:00?

9:00 PM

What time is 22:00?

10:00 PM

What time is 23:00?

11:00 PM

What time is 24:00?

12:00 AM

12-Hour Clock

In the 12-hour system of keeping time, we divide a full day (24 hour period) into two periods. Noon is the standard midday and the basis for the differentiation of these times. One period starts before midday, while the other period starts after midday.

AM is a Latin acronym that means ante meridiem (before midday). It starts at midnight and runs until 11:59 AM.

PM is a Latin acronym that means post meridiem (after midday). It starts at noon and runs until 11:59 PM.

Since the numbers 1 through 12 are the same on both sides midday, we differentiate them by attaching AM and PM behind the time. An example is 8:00 AM, which tells you the time is 8:00 in the morning, and 8:00 PM, which tells you it is nighttime.

How to Convert 12 Hour Time to 24 Hour Time?

To convert 12-hour time to 24-hour time, follow the instructions below:

  • From 12:00 AM to 12:59 AM - Subtract 12 and remove AM
  • From 1:00 AM to 11:59 AM - Remove AM
  • From 12:00 PM to 12:59 PM - Remove PM
  • From 1:00 PM to 11:59 PM - Add 12 and remove PM

You can also use an online 12 hour to 24 hour converter for the 12-hour time to 24-hour time conversion.

12-hour to 24-hour time conversion chart

12-hour clock24-hour clock
12:00 AM00:00
1:00 AM01:00
2:00 AM02:00
3:00 AM03:00
4:00 AM04:00
5:00 AM05:00
6:00 AM06:00
7:00 AM07:00
8:00 AM08:00
9:00 AM09:00
10:00 AM10:00
11:00 AM11:00
12:00 PM12:00
1:00 PM13:00
2:00 PM14:00
3:00 PM15:00
4:00 PM16:00
5:00 PM17:00
6:00 PM18:00
7:00 PM19:00
8:00 PM20:00
9:00 PM21:00
10:00 PM22:00
11:00 PM23:00
12:00 AM24:00