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Coordinated Universal Time
气象, 缩写 URC
缩写 UTC (a.k.a. UT); CUT (I. Havkin)
缩写, 航天, 军队 UTC
航空, 加拿大 The time system used in aviation operations and given to the nearest minute, except when the pilot requests a time check. Time checks are given to the nearest 15 s. The day begins at 0000 and ends at 2359. • written abbreviation: Z or UTC • spoken expression: zulu or universal
通讯, 地球科学 GMT-UTC