yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Telling time to the nearest minute: labeled clock | Math | 3rd grade | Khan Academy


2m read
·Nov 11, 2024

Let's look at this clock and see if we can tell what time is shown on it.

First thing, when we look at a clock, we have two hands, and that's because time is told in two parts. Time is told in hours; that's part, and on a clock, the hours are represented by the shorthand. Then the other part is minutes, and on an analog clock like this one, minutes are represented by the long hand.

So let's look first at hours. We have this short hand, and it's between the six and the seven. What that means is it's after 6:00 but not quite 7:00, because our hand started at the top and it worked its way around. It's gone past 6:00, but it's not 7:00. So it's 6 something. It's 6 something. It might be 6:15; it might be 6:45. We'll figure out the minutes next, but we know it's after 6:00 but not at 7:00, so we'll put a six in our hour's place.

Then for minutes, we have this longer hand, which is pointing right here at this mark. Minutes, again, start at the top and work their way around, but now each of these little spaces is 1 minute. So we can go 1, 2, 3, 4, 5, and when we get to this first square, the first where this one is, we've gone 5 minutes. Let's keep going like that: 6, 7, 8, 9, 10 at this next one.

Maybe you see a pattern here. Every time we get to one of these numbers, or the squares, the bigger marks, we've gone five more minutes. So if we keep going, this will be 15 minutes past the hour. Keep going: 20, keep going: 25. Now, we can't go all the way to the six because our minute hand stopped here; it hasn't reached this part.

So after 25, we'll go back to counting by ones: the 1 minute. We have 25, 26, 27. The minute hand has gone past 27 of these marks, meaning it is 27 minutes past the hour.

Let's try another one. The hour hand is between the 4 and the 5, which means it's after 4:00. It's some amount of minutes after 4, but it is not yet 5.

Now, let's look at our minute hand. The longer hand represents minutes. So the minute hand started at the top, and it's gone 5, 10, 15, not quite to 20. So let's go back to 15 and then count by one: 16, 17, 18, 19. Our minute hand lines up to 19, so it is 19 minutes after 4, or 4:19.

On this one, I encourage you to pause the video and see if you can figure out the time.

Okay, let's try it together now. So the hour hand is between the seven and the eight. So it's after seven but not quite eight. By looking at the hour hand, we can see it's quite a bit after seven because it's almost eight.

Looking at the minute hand confirms that the minute hand's gone all the way to here. It's almost back to the top, and that minute hand, starting at the top, has gone 5, 10, 15, 20, 25, 30, 35, 40, 45, and then one more, 46 minutes past.

46 minutes past 7. The time is 7:46.

More Articles

View All
How Do Chameleons Change Color?
There is a misconception about chameleons that they change their color in order to blend in with their environment. That is actually not the case. When a chameleon is calm, it is green, and so it naturally blends in with its leafy surroundings. But male c…
Keizoku: A Japanese Philosophy to Stop Quitting Everything You Start
You know that feeling when you start something new, maybe it’s reading, working out, or learning a new skill, and you are super excited about it? You buy all the stuff, make all these plans, and then a few weeks later you just stop, and then the guilt set…
Shockwave Shadows in Ultra Slow Motion (Bullet Schlieren) - Smarter Every Day 203
Hey, it’s me Destin. Welcome back to “Smarter Every Day.” As long as I’ve understood the physics, I’ve wanted to visualize the shock wave on the front of a supersonic bullet. But the problem with doing this is you have to have access to some pretty expens…
Journey into the Deep Sea - VR | National Geographic
We live on this incredible, unfamiliar blue planet. The ocean is this magical, complex, beautiful place, but almost nobody sees it. [Music] The ocean protects us; it feeds us. Yet few can see how beautiful and powerful that it can be. What we don’t see, w…
TAOISM | The Fasting of the Heart
You hear not with the ears, but with the mind; not with the mind, but with your soul. Confucius. In psychology, as well as popular culture, we see the emerging of different types of detox. The dopamine detox, for example, also called the ‘dopamine fast’ …
Finding 1 on the number line
I’m here at the Khan Academy exercise called “Find One on the Number Line,” and they’re asking us to do exactly that. It says move the dot to one on the number line, and it’s a little interactive dot that I could move around. So let’s think about how I wo…