time zone 的意思
时区; 时间区域
time zone 的词源
time zone(n.)
到1885年,time(时间)+ zone(区域)组合而成的“时区”一词开始流行。和英国、法国一样,美国全国范围内的时间规范化运动也是由铁路推动的,但无法仅仅依靠一个标准时间(如格林威治时间或巴黎时间)。
Previous to 1883 the methods of measuring time in the United States were so varied and so numerous as to be ludicrous. There were 50 different standards used in the United States, and on one road between New York and Boston, whose actual difference is 12 minutes, there were three distinct standards of time. Even small towns had two different standards one known as "town" or local time and the other "railroad" time.
... At noon on November 18, 1883, there was a general resetting of watches and clocks all over the United States and Canada, and the four great time zones, one hour apart, into which the country was divided came into being. So smoothly did the plan work that the general readjustment was accomplished without great difficulty and it has worked satisfactorily ever since. [Railroad Trainman, September 1909]
在1883年之前,美国的时间测量方法多种多样,甚至可以说是荒谬的。全国有50种不同的时间标准。在纽约和波士顿之间的某条铁路上,尽管实际时间差只有12分钟,却有三种截然不同的时间标准。即使是小镇,也常常有两种时间标准,一种被称为“镇时间”或地方时间,另一种则是“铁路时间”。
... 1883年11月18日中午,整个美国和加拿大的手表和时钟都进行了统一调整,国家划分为四个相差一小时的主要时区。这一计划实施得非常顺利,调整过程没有遇到太大困难,从此以后,这一制度一直运行良好。[《铁路列车员》,1909年9月]
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time zone 的使用趋势
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