As countries including the US, Canada and Cuba prepare to set clocks back an hour as daylight saving time ends on Nov. 5, debate is once again emerging in the US over whether and how to end this practice.
WHAT IS DAYLIGHT SAVING TIME?
Daylight saving time is the practice of moving clocks forward by one hour during the summer months so daylight lasts longer into the evening. Most of North America and Europe follows the custom, while the majority of countries elsewhere, especially those close to the equator, do not.
Photo: AFP 照片:法新社
The practice has been controversial from the outset, with many countries having adopted and rejected it multiple times. Egypt announced in March that it would reintroduce daylight saving time after a seven-year gap to rationalize energy use. Japan considered adopting the practice for the 2020 Olympics but rejected the proposal due to lack of popular support and technical challenges. Daylight saving time was implemented in Taiwan after World War II in the summer of 1946 to1961, 1974, 1975 and 1979.
WHEN DOES DAYLIGHT SAVING TIME END IN 2023?
Daylight saving time in the US and some neighboring countries ended on Nov. 5 at 2am local time, pushing clocks back an hour.
Photo: AFP 照片:法新社
In the UK and other European countries, daylight saving time, also known as summer time, ended on Oct. 29.
Daylight saving time always starts on the second Sunday in March and ends on the first Sunday in November for the US. This contrasts with the UK and European Union, where summer time begins on the last Sunday in March and ends on the last Sunday in October.
WHY WAS DAYLIGHT SAVING CREATED IN THE US AND HOW DID IT START?
Photo: EPA-EFE 照片:歐新社
The modern idea of changing the clocks with the seasons can be traced back to at least the late 19th century, when New Zealand entomologist George Hudson proposed it to conserve energy and extend summer daylight hours, something which would have benefited his hobby of collecting insects after work. The idea was slow to gain traction until World War I, when European states sought any strategies to conserve fuel. Germany was the first country to adopt daylight saving time in 1916 and the US followed in 1918.
The practice went through many variations before the US standardized it in 1966 in the Uniform Time Act, which allows states to opt out of it but not to stay on daylight saving time permanently. A common myth is that the US adopted daylight saving time to benefit farmers, but in reality many farmers are opposed to the practice for being disruptive to their schedules. The original motivation of conserving fuel is also under debate, as studies have found little, if any, energy savings from the shift, according to the Congressional Research Service. Opponents point to other studies that have found adverse health effects linked to daylight saving time, such as a spike in fatal traffic accidents, heart attacks, strokes and sleep deprivation in the days after clocks are moved forward an hour every March.
A March 2023 YouGov poll found that 62 percent of Americans want to end the practice of changing clocks, though only 50 percent preferred to keep permanent daylight saving time.
(Reuters)
美國、加拿大及古巴等國的日光節約時間〔夏令時間〕在11月5日結束,時鐘調慢了一小時,在美國相關討論也再度出現,思考這種做法是否該停止,以及該如何喊停。
「日光節約時間」是什麼?
日光節約時間是在夏季將時鐘往前撥一小時的做法,這樣日照時間可以持續更久到晚上。北美及歐洲大部分地區都遵循此習俗,而其他地方的大多數國家,尤其是靠近赤道的國家則沒有。
這種做法從一開始就備受爭議,許多國家曾多次採用與放棄。埃及3月宣布,將在時隔七年後重新實施夏令時間,以合理化能源使用。日本曾考慮在2020年奧運採行夏令時間,但因缺乏民眾支持以及面臨技術挑戰而作罷。台灣曾在第二次世界大戰後,於1946至1961年、1974、1975、1979年的夏季實施過日光節約時間。
2023年日光節約時間何時結束?
美國及其數個鄰國的日光節約時間於當地時間11月5日凌晨2點結束,將時鐘調慢一小時。
英國及其他歐洲國家的日光節約時間(亦稱為夏令時間),則在10月29日結束。
美國的日光節約時間總是由3月的第二個星期日開始,在11月的第一個星期日結束。這和英國及歐盟明顯不同,英國與歐盟的夏令時間始於3月最後一個星期日,而在10月最後一個星期日結束。
美國實施日光節約時間之緣起
依季節調整時鐘的現代概念至少可追溯到19世紀末,由紐西蘭昆蟲學家喬治‧哈德森所提出,為的是節省能源並延長夏季的日照時間,這對他下班後收集昆蟲的嗜好有幫助。這個想法並未引起多少關注,直到第一次世界大戰期間,歐洲國家尋找任何可節省燃料的策略,情況才改觀。德國在1916年成為第一個採用日光節約時間的國家,美國於1918年緊隨其後。
在美國1966年通過《統一時間法》將之標準化前,日光節約時間經歷了許多變化。該法律允許各州選擇不用日光節約時間,但不能永久採用它。一個常見的誤解是,美國實施日光節約時間是為了幫助農民,但實際上,許多農民反對這種擾亂他們時程的做法。據美國國會研究處稱,節省燃料的原始動機也有爭議,因為研究發現此改變幾乎無法節省能源。反對者指出,有其他研究發現實施日光節約時間對健康有不利影響,例如每年3月時鐘撥前一小時後,數天內死亡交通事故、心臟病、中風及睡眠不足的狀況會激增。
根據2023年3月的YouGov民調,62%的美國人希望捨棄改變時鐘的做法,而只有50%的人希望永久實施日光節約時間。
(台北時報林俐凱編譯)
A: More and more K-drama actors are holding fan meetings in Taiwan lately. B: Which K-drama stars are visiting? A: In September alone, Jang Ki-yong, Lee Joon-gi and Lee Je-hoon are all coming. B: I really love Lee Joon-gi‘s 2022 drama “Again My Life.” A: Lee Je-hoon’s 2016 drama “Signal” is also great. His fan meeting is scheduled for Sunday, while Lee Joon-gi‘s is scheduled for Saturday. A: 最近多位韓劇男神紛紛來台舉辦粉絲見面會。 B: 有哪些韓星啊? A: 光是9月就有張基龍、李準基、李帝勳! B: 我超愛李準基2022年的神劇《Again My Life:正義的重生》。 A: 李帝勳2016年的《信號》也很經典唷,他的見面會在本週日,李準基的則在本週六。 (By Eddy Chang, Taipei Times/台北時報張聖恩)
Have you ever looked up into the sky on a clear day and seen an airplane flying high in the clouds? If so, you’ve probably also noticed the long white streaks it leaves behind in its path. They are called contrails, and there’s more to these white lines in the sky than meets the eye. The jet fuel that powers the engines of a plane is intensely hot, often burning at more than 500°C. In contrast, the air temperature at high altitudes where commercial flights typically cruise can reach as low as -56°C. When the hot exhaust gases, which include water
A: Apart from K-drama stars Jang Ki-yong, Lee Joon-gi and Lee Je-hoon, who else will hold fan meetings in Taiwan? B: Actor Choi Jin-hyuk will visit in October, followed by actor Jung Hae-in in November. A: I heard that Jung’s visit has caused some controversy. B: Yeah, the tickets for his fan meetings cost up to NT$5,880 and NT$6,880, which led some fans to boycott them. A: The cost of meeting an idol is so high. A: 除了張基龍、李準基、李帝勳外,還有哪些韓星要來台開見面會? B: 崔振赫10月即將訪台,丁海寅11月也將訪台。 A: 聽說丁海寅的見面會還引起一些爭議。 B: 對啊,因為票價高達5,880、6,880,導致不少粉絲抵制。 A: 想見偶像一面的代價還真高! (By Eddy Chang, Taipei Times/台北時報張聖恩)
Have you ever counted the number of keys on a piano? On a standard modern piano, the number of keys is 88. So, why is this the case? The piano is believed to have been invented around the beginning of the 18th century. It was first created as a modified version of the harpsichord. Most harpsichords at the time had 60 keys—covering five octaves, with each octave comprising seven white keys and five black keys. That’s why the earliest pianos also had 60 keys. The white keys on a piano are called natural keys and correspond to the musical