Sunday 24 March 2024

Lahaina Noon Phenomenon 拉海纳正午现象

Singapore

新加坡

March 23 at 1.11pm, Singapore experiences Lahaina Noon Phenomenon.

3月23日下午1点11分,新加坡出现拉海纳正午现象。



A Lahaina Noon Phenomenon is also known as Zero Shadow Day.

拉海纳午现象也称为无影日。

The so-called zero shadow does not mean that there is no shadow at all.

所谓无影,并不是说完全没有影子。

This means that an object's shadow appears minimal.

这意味着物体的影子显得很小。

This is a natural phenomenon where an object does not cast a shadow when it is upright.

这是一种自然现象,物体直立时不会投射影子。

The Lahaina noon phenomenon occurs twice a year, on the spring and autumn equinoxes.

拉海纳午现象一年出现两次,分别在春分和秋分。

The astronomical equinox results in an equal amount of daylight and darkness.

天文春分导致白天和黑暗的时间相等。

P/S: Due to historical reasons, Singapore's time is one hour ahead compared with the solar time. This means that solar noon does not occur until about 1pm, rather than noon, which also explains why sunrise and sunset times in Singapore are observed at about 7am and 7pm respectively.

注:由于历史原因,新加坡时间比太阳时快一小时。这意味着太阳正午要到下午 1 点左右才会出现,而不是中午,这也解释了为什么在新加坡日出和日落时间分别在上午 7 点和晚上 7 点左右。

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