Days are getting shorter and temperatures are plummeting.

日照变短，气温骤降。

The first, obviously, is the amount of sunlight.

首先，很明显，是日照量。

And the higher the latitude, the longer the period of sunshine.

而且纬度越高，日照时间越长。

From this day onwards, sunlight hours will start to decrease.

今天过后，日照时间将逐渐减短。

The Summer Solstice is the longest day in the northern hemisphere.

夏至是北半球日照时间最长的一天。

This part of the planet gets more average solar radiation throughout the year.

这里的植物年均日照量比其他地区更高。

When the sun is shining, your body knows to wake up and be active.

日照大地时，你的身体知道该起床活动了。

The longest day was set as the Summer Solstice, the shortest day, the Winter Solstice.

将日照时间最长的一天定为夏至，最短的一天定为冬至。

As the days are drawing shorter, less light is feeding the forests.

随着白昼越来越短，森林里的日照也越来越。

That will be the shortest day of the year, with the least amount of sunlight.

那就会是一年中最短的一天，也就是日照时间最短的一天。

With 333 days of sunshine each year, this destination is the perfect place for nature lovers.

这里每年有333天的日照，是大自然爱好者的理想去处。

Well, compared to temperature, which can vary wildly from year to year, daylight is simply more consistent.

温度每年可能变化很大，而日照时间则更加稳定。

The solstice marks the longest period of sunlight of the year but it was a typical cloudy day.

夏至标志着一年中日照时间最长的一天，但这是一个典型的多云天气。

With 19 hours of daylight this time of year, Anchorage's fireworks show does not start until 11 at night.

每年这个时候安克雷奇的日照时间有19个小时，烟花表演要到晚上11点才开始。

Valencia has a Mediterranean climate, meaning it is pleasant all year and sees around 300 days of sunshine.

瓦伦西亚属于地中海气候，全年气候宜人，日照时间约为 300 天。

He calculated that an hour clock shift would add three years more daylight to your life by age 72.

他计算得出，到72岁时，一小时的时钟调整将为你的活增加三年的日照时间。

This process affects the amount of sunlight between seasons.

这个过程会影响节之间的日照量。

He was left there with the hot sun shining on his face.

他被留在那， 烈日照在他的脸上。

When the Earth's axis changes again, the amount of sunlight is reduced.

当地轴再次发变化时，日照量就会减。

Because the astronomical system, which we four-season folk use for most things, defines seasons not via temperature, but via daylight.

因为我们这些有的人在大多数情况下使用的天文系统，不是通过温度来定义节，而是通过日照时间。