单词daylight saving time
un.: 夏令时间；经济时；夏季时间；日光节约时间
夏令时（有些国家实行夏时制，将时钟拨快一小时，以节约照明能源）:
the period during which in some countries the clocks are put forward one hour, so that it is light for an extra hour in the evening
日光节约时间
夏季时间
经济时
夏令时间
But Wolff points to a body of evidence, including his own work, suggesting that daylight saving time may not really conserve energy at all.
然而伍尔夫用包括他自己的研究在内的一批证据表明，夏时制可能根本没有节约能源。
That section of the act was repealed the following year, and daylight saving time thereafter became a matter left up to local jurisdictions.
法令的这个部分于第二年被废除，从那以后是否采用夏时制改由地方自己决定。
Dowd said the same findings might not apply to year-round daylight saving time, however.
但杜德也说，如果实行全年夏时制，也许就得不到同样的效果。
Most sundial designs indicate apparent solar time. Minor design variations can measure standard and daylight saving time, as well.
绝大部分的日晷显示的都是视太阳时，有些在设计上作了变更，可以显示标准时或是日光节约时间…
Some device emulators do not initially set daylight-saving time correctly, which could affect your result.
有些设备模拟器起初未正确设置夏时制，从而可能影响结果。
Two years ago Congress ordered Daylight Saving Time to launch three weeks early, in an effort to save energy.
两年前为了试图节约能源，国会下令把夏夏令时提前3周实行。
At the end of daylight saving time, the clock time is set back by the length of time specified in this property.
夏时制结束时，时钟时间会按此属性中指定的时间长度向后调整。
It turned out it was the country of Germany, under Kaiser Wilhelm, that put in daylight saving time first.
结果是凯撒·威廉领导下的德国率先实行了夏令时。
By requiring that everyone shift clocks back in the fall and forward in the spring, daylight saving time obviates this coordination problem.
而日光节约时让所有人春天将时间前调，秋天再调回来，就可以消除这一协调问题。
Russia since the 27th permanent use daylight saving time, time set aside one hour, no longer transferred back.
俄罗斯自27日开始永久使用夏令时，把时间拨快一小时，不再调回。