B0191 Global View / Global View

Daylight Savings Time

夏令时间

音频 对话 Dialogue
0:00 / 0:00

对话 Dialogue

A
说话人 A

Did you set your clock forward for daylight savings time?

你调时钟了吗?为了夏令时。

B
说话人 B

What? Why do we have to do that?

什么?为什么要调?

A
说话人 A

Well, at the start of the spring we usually have more daylight in the mornings and less in the afternoon. This is basically due to our position on the planet and the rotation of the earth. In any case, to take better advantage of the daylight available, we compensate by moving our clocks forward one hour.

嗯,春天开始的时候,早上天亮得早,下午天黑得也早。这主要是因为我们在地球上的位置和地球自转造成的。总之,为了更好地利用白天时间,我们把时钟拨快一小时。

B
说话人 B

I see. That’s convenient! I never understood things like this, such as GMT. I never know what time zone we are in or when to change my clock!

明白了。真方便!我从来搞不懂这些,比如GMT。我总不知道自己在哪个时区,也不知道什么时候该调表!

A
说话人 A

That just stands for Greenwich Mean Time. Here in California, we are in Pacific Standard Time, that is eight time zones west of Greenwich. Remember when we were in Beijing? Well, then we were in China Standard Time, and that’s eight time zones east of Greenwich!

那是格林威治标准时间。在加州,我们用的是太平洋标准时间,比格林威治晚八个时区。还记得我们在北京的时候吗?那是中国标准时间,比格林威治早八个时区!

B
说话人 B

That’s why it was so weird traveling from Beijing to LA! Because of the huge time difference, even though we left Beijing at noon and flew for more than eight hours, we still arrived in LA the same day at noon! It’s like we went back in time!

怪不得从北京飞洛杉矶那么奇怪!因为有时差,虽然我们中午离开北京,飞了八个多小时,结果到洛杉矶还是同一天的中午!就像时光倒流了一样!

完整节目 Full Program

Hello everyone and welcome back to EnglishPod.

My name is Marco.

My name is Catherine and today we're talking about something that has always been very

confusing for me.

For me as well.

I don't understand very well what this is about.

We're going to be talking about time zones and a little bit about daylight savings time.

Before we get started though, let's take a look at this phrase in today's vocabulary

preview.

Vocabulary preview.

All right, so the phrase is daylight savings time.

Okay, so we're trying to save daylight pretty much.

That's right.

So this is the time of year when we change our clocks.

What does that mean?

That means in the fall there's a special day and everyone has it on their calendar and

we change the clocks.

We put them back one hour.

So if it was eight o'clock now it's seven o'clock.

Okay, so everything is earlier, starts earlier.

And that's basically to take advantage of the daylight, right?

That's why it's called daylight savings time.

Exactly.

And so that's for the winter and then when the winter's past we change the clocks again.

We have the spring daylight savings where we change our clocks ahead.

Okay.

So it sounds kind of complicated.

Many countries don't have daylight savings time.

They don't change their clocks at all.

But we're going to be talking about this in a little bit more so why don't we listen to

our dialogue for the first time.

Did you set your clock forward for daylight savings time?

What?

Why do we have to do that?

Well, at the start of the spring we usually have more daylight in the mornings and less

in the afternoon.

This is basically due to our position on the planet and the rotation of the Earth.

In any case, to take better advantage of the daylight available we compensate by moving

our clocks forward one hour.

I see.

That's convenient.

I never understood things like this such as GMT.

I never know what time zone we are in or when to change my clock.

That just stands for Greenwich Mean Time.

Here in California we're in Pacific Standard Time.

That is eight time zones west of Greenwich.

Remember when we were in Beijing?

Well, then we were in China Standard Time and that's eight time zones east of Greenwich.

That's why it was so weird traveling from Beijing to LA because of the huge time difference.

Even though we left Beijing at noon and flew for more than eight hours, we still arrived

in LA the same day at noon.

It's like we went back in time.

Alright we're back.

So that was a pretty clear explanation of why we do these things.

But maybe there are a couple of words that you didn't understand.

So let's take a look at those now in Language Takeaway.

Language Takeaway.

Well, Marco, what you were hinting at before, this idea that we have shorter days in the

winter and longer days in the summer has to do with the rotation of the Earth.

So the rotation of the Earth is our first phrase.

So the Earth rotates.

What does that mean if it rotates?

Means to spin around.

But not just to spin around anywhere.

It means that if you draw a line through the middle of something, it never leaves that

line.

It just kind of turns.

So it's spinning.

Like the wheels on a car.

They rotate.

That means they go around but they are fixed to the car.

So this is one of the reasons why we need to compensate our clocks because of the rotation

of the Earth.

And that's our next word, to compensate.

This is a verb, to compensate.

And it's often used with money but it can be used with time as well.

Time or sunlight.

So with money you'd say, I paid him a hundred dollars but I owed him a hundred fifty.

So I'm going to compensate him for the extra fifty.

Means I'm going to fix it.

So to compensate would be the verb and compensation would be the noun.

Now in this case we're talking about time.

So how can we compensate time?

Well that means that if we have lost an hour because we changed the clocks, we have to

compensate.

We have to try and gain that hour back.

And so that's why in the spring, after the days start to get longer and longer, we have

to compensate for that by changing the clocks again.

So we're compensating time.

Now related to daylight savings and this whole time thing is time zones.

We have time zones all over the Earth.

And you've probably noticed this if you've traveled.

You have to change your clocks or many times you see in hotels what time it is in London,

in Hong Kong, in Berlin, etc.

And this makes a lot of sense because like we said, the Earth is rotating and so if it's

daylight in Moscow and it's nighttime in New York, obviously it's not the same time.

So to compensate for this difference, we have different time zones.

And each time zone is pretty much an hour or so, you know, half an hour different from

the next one.

Right.

So most countries actually have different time zones throughout their country unless

they're small that they don't really need to compensate any change.

Or for example, China, just to unify everything, it's a big country but they have one time

zone.

It's China standard time.

Exactly.

But in the United States, we have four time zones.

Right.

Alright.

So that's time zone.

And the other thing related to time zone is time difference.

Okay, well think about math here.

Difference is a word that we use in math.

And a time difference is the amount of time, that means how many hours there are between

one time zone and another time zone.

So for example, Beijing and New York City.

These are very, very far away from each other.

If it's day in New York, it's night in Beijing.

So that means if it's seven in the morning in Beijing, it's probably around seven at

night in New York.

So the time difference would be more or less 12 hours.

Exactly.

But when it's daylight savings time, it's 13.

So be careful.

Right.

Okay.

I think that's pretty clear.

I think we should go back and listen to our dialogue again.

And we'll be back soon with Fluency Builder.

Did you set your clock forward for daylight savings time?

What?

Why do we have to do that?

Well, at the start of the spring, we usually have more daylight in the mornings and less

in the afternoon.

This is basically due to our position on the planet and the rotation of the earth.

In any case, to take better advantage of the daylight available, we compensate by moving

our clocks forward one hour.

I see.

That's convenient.

I never understood things like this, such as GMT.

I never know what time zone we are in or when to change my clock.

That just stands for Greenwich Mean Time.

Here in California, we're in Pacific Standard Time.

That is eight time zones west of Greenwich.

Remember when we were in Beijing?

Well, then we were in China Standard Time, and that's eight time zones east of Greenwich.

That's why it was so weird traveling from Beijing to LA, because of the huge time difference.

Even though we left Beijing at noon and flew for more than eight hours, we still arrived

in LA the same day at noon.

It's like we went back in time.

All right, we're back.

Now let's take a look at three key phrases in Fluency Builder.

Fluency Builder.

Let's go back to the beginning of this dialogue.

The person who's explaining all of these interesting things is saying that, well, in any case,

to take better advantage of the daylight available, we compensate by moving our clocks forward

one hour.

This is an important phrase you could say to take better advantage of or to take advantage

of.

Let's talk about this.

To take advantage of something.

So to take advantage of something is to use it efficiently, right?

Or to take better advantage.

So for example, if you drive to work every day and your neighbor drives to work every

day and you work at the same place, you could take better advantage of your car and the

cost by sharing the same car to work.

Exactly.

Or when people started to use computers, you could say, well, they were taking better advantage

of their time by speeding things up, by making things faster with the computers.

Right.

Or many mothers say, take better advantage of your time and read something instead of

playing those video games.

Exactly.

So it means, like you said, to be more efficient, to do useful or important things.

That's right.

And now when we talked about what daylight savings time means or GMT, what that stands

for.

This is an interesting phrase.

It stands for.

Well, think about it as a picture.

So if something stands for something else, that means the original thing, it's not there

anymore.

And so in words and phrases like GMT, GMT doesn't mean anything by itself.

But the G stands for something, the M stands for something.

It's an acronym.

Okay.

So this is an acronym that stands for, that represents three big long words.

Okay.

Greenwich, meantime.

Right.

So we use this a lot when we are defining words or when we are defining an acronym like

GMT stands for Greenwich, meantime.

Or for example, USA stands for United States of America.

Or we can even say someone's name stands for something.

So Marco, what is the M in your last name stand for?

So you're Marco M. What does the M stand for?

Right.

And then I would say, well, it stands for Mejia.

Your last name.

Right.

And then we use this when you see things that you don't understand, maybe an acronym or

an abbreviation.

Like does Cathy stand for Catherine?

Yes, Cathy stands for Catherine.

It's a short version of Catherine.

Cool.

All right.

And well now talking a little bit more about time, you've maybe seen the movie Back to

the Future and this is what it's all about, to go back in time.

To go back in time.

So we went back in time.

This is what the person says about the flight from Beijing to LA.

What's interesting is that to go back in time is kind of a fixed phrase.

We always say it like this.

So we could say, if you went back in time, where would you go?

What time?

What place?

Right.

So to go back in time, you usually use it like this.

Now, what if I wanted to say to go into the future?

Could you say, go forward in time?

You could go forward in time or you could go into the future.

Right.

Go into the future.

So remember, if you want to talk about going back in time, it's usually traveling to the

past.

Exactly.

All right.

So that's all the phrases we have.

Why don't we listen to the dialogue for the very last time.

Did you set your clock forward for daylight savings time?

What?

Why do we have to do that?

Well, at the start of the spring, we usually have more daylight in the mornings and less

in the afternoon.

This is basically due to our position on the planet and the rotation of the earth.

In any case, to take better advantage of the daylight available, we compensate by moving

our clocks forward one hour.

I see.

That's convenient.

I never understood things like this, such as GMT.

I never know what time zone we are in or when to change my clock.

That just stands for Greenwich Mean Time.

Here in California, we're in Pacific Standard Time.

That is eight time zones west of Greenwich.

Remember when we were in Beijing?

Well, then we were in China Standard Time and that's eight time zones east of Greenwich.

That's why it was so weird traveling from Beijing to LA, because of the huge time difference.

Even though we left Beijing at noon and flew for more than eight hours, we still arrived

in LA the same day at noon.

It's like we went back in time.

All right, we're back.

Now, this is actually something that really does happen, right?

If you take off in an airplane from Beijing, you fly for a certain amount of hours and

you reach California and it's still the same time.

You reach it in the same day.

It's very strange.

The same thing happens to me when I go home.

I leave Shanghai and I arrive in Chicago and I arrive at the exact same time I left on

the same day.

It's like time never passed.

It's the longest day of your entire life, because it's not 24 hours.

The flight is 14 hours.

It's really 24, 38 hours long, right?

It's really intense and exhausting.

Then what happens is when you do the opposite.

You go from Chicago to Shanghai, then you go into the future pretty much, right?

Because you left on a Sunday, but you arrive on a Tuesday.

Or in my case, yeah, you leave on a Sunday and you'd arrive on a Monday and you lose

half a day of your life.

You're just sitting there and all of a sudden it goes past you.

So it all evens out in the end.

So when you go back or when you come, it all evens out.

You recover, you get those hours of your life back pretty much.

They're not gone forever.

All right.

So if you guys have any questions, any doubts, you can send us an email at EnglishPod at

PraxisLanguage.com or come to our website EnglishPod.com.

We hope to see you there.

Ask away and until next time everyone.

Bye.

复习 Review

The EnglishPod audio review.

Listen to the meaning, then say the vocabulary word.

Let's try that faster.

Now say the word and hear it in a sentence.

The EnglishPod audio review.