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[NEW] Converting AM/PM to 24 Hour Clock | one to twenty – NATAVIGUIDES

one to twenty: คุณกำลังดูกระทู้

Time – AM/PM vs 24 Hour Clock

Normally time is shown as Hours:Minutes

There are 24 Hours in a Day and 60 Minutes in each Hour.

Example: 10:25 means 10 Hours and 25 Minutes

Showing the Time

There are two main ways to show the time: “24 Hour Clock” or “AM/PM”:

24 Hour Clock: the time is shown as how many hours and minutes since midnight.

AM/PM (or “12 Hour Clock”): the day is split into:

  • the 12 Hours running from Midnight to Noon (the AM hours), and
  • the
    other 12 Hours running from Noon to Midnight (the PM hours).

(or “12 Hour Clock”): the day is split into:

Like this (try the slider):

measure/images/time-am-pm.js

AM

PM

Ante Meridiem*

Post Meridiem*

Midnight to Noon

Noon to Midnight

24 Hour:
00:00 to 11:59

24 Hour:
12:00 to 23:59

Converting AM/PM to 24 Hour Clock

Add 12 to any hour after Noon (and subtract 12 for the first hour of the day):

For the first hour of the day (12 Midnight to 12:59 AM), subtract 12 Hours

Examples: 12 Midnight = 00:00, 12:35 AM = 00:35

From 1:00 AM to 12:59 PM, no change

Examples: 11:20 AM = 11:20, 12:30 PM = 12:30

From 1:00 PM to 11:59 PM, add 12 Hours

Examples: 4:45 PM = 16:45, 11:50 PM = 23:50

Converting 24 Hour Clock to AM/PM

For the first hour of the day (00:00 to 00:59), add 12 Hours, make it “AM”

Examples: 00:10 = 12:10 AM, 00:40 = 12:40 AM

From 01:00 to 11:59, just make it “AM”

Examples: 01:15 = 1:15 AM, 11:25 = 11:25 AM

From 12:00 to 12:59, just make it “PM”

Examples: 12:10 = 12:10 PM, 12:55 = 12:55 PM

From 13:00 to 23:59, subtract 12 Hours, make it “PM”

Examples: 14:55 = 2:55 PM, 23:30 = 11:30 PM

 

Comparison Chart

Here is a side-by-side comparison of the 24 Hour Clock and AM/PM:

Example: on the hour

Example: 10 minutes past

24 Hour Clock

AM / PM

24 Hour Clock

AM / PM

 
 
 
 
 

00:00
12 Midnight

00:10
12:10 AM

01:00
1:00 AM
 
01:10
1:10 AM

02:00
2:00 AM
 
02:10
2:10 AM

03:00
3:00 AM
 
03:10
3:10 AM

04:00
4:00 AM
 
04:10
4:10 AM

05:00
5:00 AM
 
05:10
5:10 AM

06:00
6:00 AM
 
06:10
6:10 AM

07:00
7:00 AM
 
07:10
7:10 AM

08:00
8:00 AM
 
08:10
8:10 AM

09:00
9:00 AM
 
09:10
9:10 AM

10:00
10:00 AM
 
10:10
10:10 AM

11:00
11:00 AM
 
11:10
11:10 AM

12:00
12 Noon
 
12:10
12:10 PM

13:00
1:00 PM
 
13:10
1:10 PM

14:00
2:00 PM
 
14:10
2:10 PM

15:00
3:00 PM
 
15:10
3:10 PM

16:00
4:00 PM
 
16:10
4:10 PM

17:00
5:00 PM
 
17:10
5:10 PM

18:00
6:00 PM
 
18:10
6:10 PM

19:00
7:00 PM
 
19:10
7:10 PM

20:00
8:00 PM
 
20:10
8:10 PM

21:00
9:00 PM
 
21:10
9:10 PM

22:00
10:00 PM
 
22:10
10:10 PM

23:00
11:00 PM
 
23:10
11:10 PM

Midnight and Noon

“12 AM” and “12 PM” can cause confusion, so we prefer “12 Midnight” and “12
Noon”.

What Day is Midnight?

Midnight has another problem: there is nothing to tell us “is this the beginning or ending of the day”.

Imagine your friends say they are leaving for holiday at “midnight” on 12th March, what day should you arrive to say goodbye?

Do you get there on the 11th (assuming they leave at the very start of the 12th), or the 12th (assuming they leave at the end of the 12th)?

It is better to use:

  • 11:59 PM or 12:01 AM, or
  • 23:59 or 00:01 (24-Hour Clock)

which the railroads, airlines and military actually do.

So, when you see something like “offer ends midnight October 15th” tell them to use one minute before or after so there is no confusion!

 

Footnote on “Meridiem” vs “Meridian”

Should “AM” be “ante meridiem” or “ante meridian” (likewise for PM)?

The official (according to an American, Australian and British dictionary), and most common, spelling for AM is “ante meridiem” which is a Latin phrase. I recommend that spelling!

But people use the phrase “ante meridian” (a “meridian” in this case refers to an imaginary line in the sky when the sun is at its highest point).

 

3698, 3699, 3700, 3701, 3702, 3703, 3704, 3705, 3658, 3660

[Update] Decimals | one to twenty – NATAVIGUIDES

Decimals

A Decimal Number () contains a Decimal Point.

 

First, let’s have an example:

Here is the number written as a decimal number:

 

The decimal point goes between Ones and Tenths.

 

45.6 has 4 Tens, 5 Ones and 6 Tenths, like this:

Now, let’s discover how it all works …

Place Value

It is all about Place Value !

When we write numbers, the position (or “place“) of each digit
is important.

In the number 327:

  • the “7” is in the Ones position, meaning 7 ones (which is 7),
  • the “2” is in the Tens position meaning 2 tens (which is twenty),
  • and the “3” is in the Hundreds position, meaning 3 hundreds.

“Three Hundred Twenty Seven”


As we move left, each position is

10 times bigger!

 
Tens are 10 times bigger than Ones
Hundreds
are 10 times bigger than Tens

… and …

As we move right, each position is

10 times smaller

.

From Hundreds, to Tens, to Ones
 

 

But what if we continue past Ones?

What is 10 times smaller than Ones?

110ths (Tenths) are!

 

But we must first put a decimal point,
so we know exactly where the Ones position is:
 

“three hundred twenty seven and four tenths

but we usually just say “three hundred twenty seven point four

And that is a Decimal Number!

 

We can continue with smaller and smaller values, from tenths, to hundredths, and so on, like in this example:

Have a play with decimal numbers yourself:

Large and Small

So, our Decimal System lets us write numbers as large or as small as
we want, using the decimal point. Digits can be placed to the left
or right of a decimal point, to show values greater than one
or less than one.

The decimal point is the most important part of a Decimal Number. Without it we are lost, and don’t know what each position means.

17

591

 
 
 
 
 

On the left of the decimal point
is a
whole number (such as 17)

 
 

As we move further left,
every place gets 10
times bigger
.
 
 
 
 

 
 
 
 
 

 
 

The first digit on the right means
tenths (1/10).

 
 
 
 
As we move further right,
every place
gets 10 times smaller
(one tenth as big).

Zoom into decimals …

See decimals on the Zoomable Number Line

Definition of Decimal

The word “Decimal” really means “based on 10” (From Latin : ).

We sometimes
say “decimal” when we mean anything to do with our numbering
system, but a “Decimal Number” usually means there is
a Decimal Point.

Ways to think about Decimal Numbers …

… as a Whole Number Plus Tenths, Hundredths, etc

We can think of a decimal number as a whole number plus tenths, hundredths, etc:

Example 1: What is 2.3 ?

  • On the left side is “2”, that is the whole number
    part.
  • The 3 is in the “tenths” position, meaning “3
    tenths”, or 3/10
  • So, 2.3 is “2 and 3 tenths”

Example 2: What is 13.76 ?

  • On the left side is “13”, that is the whole number
    part.
  • There are two digits on the right side, the 7 is in the “tenths”
    position, and the 6 is the “hundredths” position
  • So, 13.76 is “13 and 7 tenths and 6 hundredths”

… as a Decimal Fraction

Or we can think of a decimal number as a Decimal Fraction.

A Decimal Fraction is a fraction where the denominator (the bottom number) is a number such as 10, 100, 1000, etc (in other words a power of ten)

So “2.3” looks like:

23
10

 
 

And “13.76” looks like:

1376
100

 

… as a Whole Number and Decimal Fraction

Or we can think of a decimal number as a Whole Number plus a Decimal Fraction.

So “2.3” looks like:

2 and

3
10

 
 

And “13.76” looks like:

13 and

76
100

Those are all good ways to think of decimal numbers.

 

 


Days of the Week Song | The Singing Walrus


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Days of the Week Song | The Singing Walrus

twenty one pilots – Ride (Official Video)


The official video for twenty one pilots’ \”Ride\” from the album ‘Blurryface’ available now on Fueled By Ramen.
Subscribe for more official content from twenty one pilots: https://top.lnk.to/subscribe
iTunes: http://www.smarturl.it/blurryface
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Instagram: http://smarturl.it/TOPinstagram
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Tumblr: http://smarturl.it/TOPtumblr
Directed by Reel Bear Media (http://reelbearmedia.com)
LYRICS
I just want to stay in the sun where I find,
I know it’s hard sometimes,
Pieces of peace in the sun’s peace of mind,
I know it’s hard sometimes,
Yeah I think about the end just way too much,
But it’s fun to fantasize,
On my enemies I wouldn’t wish who I was,
But it’s fun to fantasize.
I’m falling so I’m taking my time on my ride,
I’m falling so I’m taking my time on my ride.
“I’d die for you,” that’s easy to say,
We have a list of people that we would take,
A bullet for them, a bullet for you,
A bullet for everybody in this room,
But I don’t seem to see many bullets coming through,
See many bullets coming through,
Metaphorically I’m the man,
But literally I don’t know what I’d do,
“I’d live for you” and that’s hard to do,
Even harder to say when you know it’s not true,
Even harder to write when you know that tonight,
There were people back home who tried talking to you,
But then you ignored them still,
All these questions they’re for real,
Like who would you live for? Who would you die for?
And would you ever kill?
I’m falling so I’m taking my time on my ride,
I’m falling so I’m taking my time on my ride.
I’ve been thinking too much,
Help me.
I’m falling so I’m taking my time on my ride,
I’m falling so I’m taking my time on my ride.
I’ve been thinking too much,
Help me.
TwentyOnePilots Ride Blurryface

twenty one pilots - Ride (Official Video)

The Big Numbers Song


It’s a numbers song for children and adults. Count from 0 to 100 and from a hundred to a trillion.
This song was written and performed by A.J. Jenkins. Video by KidsTV123.
Copyright 2011 A.J.Jenkins/KidsTV123: All rights reserved.
This is an ORIGINAL song written in 2011 any copying is illegal.
For free MP3s, worksheets and much more:
http://www.kidstv123.com
Kids songs song for children
Chords:
D A G D
https://open.spotify.com/artist/0zC8dOCRSyLAqsBq99du1f
https://music.youtube.com/channel/UC0EqNhs_ejTB7_EgTZzpixA
https://music.apple.com/gb/artist/kidstv123/1439675517
https://www.amazon.com/EducationalSongsKidsTV123/dp/B07JQCMY27

The Big Numbers Song

Count And Move (HD) | Super Simple Songs


Get the Super Simple App for iOS! ► http://apple.co/2nW5hPd
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Lyrics:
Let’s get started with some counting!
Can you count to 20?
Here we go!
One!
Two!
Three!
Four!
Five!
Six!
Seven!
Eight!
Nine!
Ten!
Eleven!
Twelve!
Thirteen.
Fourteen.
Fifteen.
Sixteen.
Seventeen!
Eighteen!
Nineteen!
Twenty!
YAY!!!!!!
That was fun!

Song: Count And Move
CD: Super Simple Songs 2
Music: Super Simple Learning
Vocals: Matt Stamm

Super Simple Songs® and Super Simple Learning® are registered trademarks of Super Simple Learning, Inc.

\”Count And Move\” by Super Simple Learning

Count And Move (HD) | Super Simple Songs

Counting Numbers Song For Children 1-20 


Counting numbers Song 120 with CarCre! Children counting with a fun beat even parents will enjoy! We have so much fun in this counting numbers video. This new and original counting numbers song for kids will have you dancing for hours. If you like this video, please give it a thumbs up and don’t forget to subscribe!

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counting
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Counting Numbers Song For Children 1-20 

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