The basic framework of international time zones is that there is about one hour difference in solar time for every 15 degrees of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
There is no ongoing scientific debate about the fact that one day in solar time is comprised of 24 hours, or that one year is 365 days in length.
现在，对于太阳时的一天包括24个小时、一年有365天这样的事实已经不再存在科学上的争论。
The International Meridien Conference of 1884 established Greenwich Mean Time, referring to the mean solar time at the Royal Observatory in Greenwich, near London.
1884年，国际子午线大会确立了格林威治标准时间（GMT），即伦敦附近的格林威治皇家气象台（the Royal Observatoryin Greenwich）的平均太阳时间。
Through the shadow of the gnomon we can read the local true solar time in Xiehe Middle School.
根据晷针日影投射到晷盘的时间刻度，可读出广州协和中学的地方真太阳时（视时）。
US scientists want to change the current system, which keeps clocks in synch with solar time by adding a leap second every 18 months or so.
美国科学家希望改变现行系统，亦即透过每隔约18个月添增1闰秒，让时钟与太阳时保持一致。
The basic framework of international time zones is that there is about one hour difference in solar time for every 15 DE GREes of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
The basic framework of international time zones is that there is about one hour difference in solar time for every 15 DE GREes of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
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