2004/12/13 | 中午[Noon]
类别(¤〖天文〗) | 评论(0) | 阅读(25) | 发表于 14:18
The time of day when, on average over the year, the Sun reaches its highest elevation in the sky. Noon is 12:00 in universal time. Noon itself is neither a.m. nor p.m., but the minute between 12:00 and 12:01 is p.m., so 12:00 noon is often denoted p.m. on digital clocks in the U. S.
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