标准时区
standard time-zone
标准时区
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标准时区
biāozhǔn shíqū
按经线把地球表面平分为二十四区,每一区跨十五度,叫做一个标准时区。以本初子午线为中线的那一区叫做零时区。以东经15°, 30°…165°为中线的时区分别叫做东一时区、东二时区…东十一时区。以西经15°, 30°…165°为中线的时区分别叫做西一时区、西二时区…西十一时区。以东经180°(也就是西经180°)为中线的时区叫做东十二时区,也就是西十二时区。相邻两个标准时区的标准时相差一小时。如东一时区比零时区早一小时,西一时区比零时区晚一小时。 {standard time zone, one of the 24 zones on the surface of the earth equally divided by the meridians (or longitudes). Each zone is about 15 degrees of longitude wide and is called a standard time zone. The zone for which the prime meridian is the middle meridian is called the zero time zone. The time zones for which the 15°, 30°... 165° east longitudes are their middle meridians are respectively known as east one time zone, east two time zone ... east 11 time zone. The time zones for which the 15°, 30°... 165°west longitudes are their middle meridians are respectively known as west one time zone, west two time zone ... west 11 time zone. The time zone for which the 180°east longitude (i.e., the 180°west longitude) is the middle meridian is called the east 12 time zone (i.e., the west 12 time zone). Adjacent time zones differ by a whole hour. For example, the east one time zone is one hour earlier than the zero time zone, and the west one time zone is one hour later than the zero time zone.}也叫 also: 时区 {shíqū}。
biāozhǔn shíqū
按经线把地球表面平分为二十四区,每一区跨十五度,叫做一个标准时区。以本初子午线为中线的那一区叫做零时区。以东经15°, 30°…165°为中线的时区分别叫做东一时区、东二时区…东十一时区。以西经15°, 30°…165°为中线的时区分别叫做西一时区、西二时区…西十一时区。以东经180°(也就是西经180°)为中线的时区叫做东十二时区,也就是西十二时区。相邻两个标准时区的标准时相差一小时。如东一时区比零时区早一小时,西一时区比零时区晚一小时。 {standard time zone, one of the 24 zones on the surface of the earth equally divided by the meridians (or longitudes). Each zone is about 15 degrees of longitude wide and is called a standard time zone. The zone for which the prime meridian is the middle meridian is called the zero time zone. The time zones for which the 15°, 30°... 165° east longitudes are their middle meridians are respectively known as east one time zone, east two time zone ... east 11 time zone. The time zones for which the 15°, 30°... 165°west longitudes are their middle meridians are respectively known as west one time zone, west two time zone ... west 11 time zone. The time zone for which the 180°east longitude (i.e., the 180°west longitude) is the middle meridian is called the east 12 time zone (i.e., the west 12 time zone). Adjacent time zones differ by a whole hour. For example, the east one time zone is one hour earlier than the zero time zone, and the west one time zone is one hour later than the zero time zone.}也叫 also: 时区 {shíqū}。
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