(This page should be friendly to most colourblind viewers)

## How Does Time Work?

Time ultimately comes from two pieces of information:

1: our earth's position of orbit around the sun

2: our earth's rotation in relation to the sun

1: our earth's position of orbit around the sun

2: our earth's rotation in relation to the sun

**1: The Earth's Position**

This tells us what part of a

**year**we are in; one full orbit is a year. We divided our year into twelve parts called**months**. Let's visualize the earth's orbit with its seasons. The balls that orbit are the Earth, and each ball has two halves which represent the north and south hemisphere:If we look at October, for instance, the northern hemisphere is in fall, while the southern hemisphere is in spring.

12 months make one year, then we divide it into quarters. Each of those quarters we called seasons. In summary:

1 year = 1 earth orbit around the sun

1 year = 12 months

3 months = 1 season

Seasons are only possible because of the earth's tilt. Which ever pole is tilted towards the sun, that side is in summer, the opposite pole is in winter. This means the south and north hemisphere have opposite seasons. It is summer in North America when it is winter in Australia.

There are around 365.242 days in a year, so we mark on a calendar:

365 : the basis for every year

.242 : since this is close to a quarter, every 4 years we add a day, this is called a leap year. But since it isn't a full quarter (0.25), we deny a leap year every 400 years.

12 months make one year, then we divide it into quarters. Each of those quarters we called seasons. In summary:

1 year = 1 earth orbit around the sun

1 year = 12 months

3 months = 1 season

Seasons are only possible because of the earth's tilt. Which ever pole is tilted towards the sun, that side is in summer, the opposite pole is in winter. This means the south and north hemisphere have opposite seasons. It is summer in North America when it is winter in Australia.

There are around 365.242 days in a year, so we mark on a calendar:

365 : the basis for every year

.242 : since this is close to a quarter, every 4 years we add a day, this is called a leap year. But since it isn't a full quarter (0.25), we deny a leap year every 400 years.

**2: The Earth's Rotation**

Sunlight passes over us on our particular longitude (east/west point) on the planet as it rotates creating the full day and night cycle. It is noon in China while it is midnight in the US. Let's see this:

A

1 day = 1 complete earth rotation

1 day = 2 parts

1 part = 12 hours

2 parts = 24 hours

Then we take those

1 hour = 60 minutes

1 minute = 60 seconds

**day**is a complete rotation of the earth. We take a day and cut it up into two halves. Each of those halves we divide into 12 periods of time called**hours**. Two sets of 12**hours**makes 24**hours**in a**day**. In summary:1 day = 1 complete earth rotation

1 day = 2 parts

1 part = 12 hours

2 parts = 24 hours

Then we take those

**hours**and divide them into 60 periods of time called**minutes**. We repeat this again, taking 1**minute**and dividing it up into 60 periods of time called**seconds**:1 hour = 60 minutes

1 minute = 60 seconds