4pm Pst In Cst How To Master Time Zones Like A Pro Centrl

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16:00pm还是4:00pm是下午4点。 16点是采用24小时计时制。时间pm的全称是post meridiem (=afternoon) 所以pm16点就是下午4点。 am，pm是十二小时制的表示方法。十二小时制把一日.

Time Zones and Time Differences 4th Grade Math Class Ace