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Both 昼{ひる} and 正午{しょうご} mean noon, so are they interchangeable?
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2014-09-11T10:55:01.247
18647
2014-09-11T12:58:43.183
2014-09-11T11:00:29.427
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question
words
What's difference between 昼(hiru) and 正午(shōgo)?
「正午」 only has one meaning --- "12:00 p.m."

「昼」 has a few different meanings --- "daytime", "12:00 p.m.", "lunch",
"afternoon", etc.

So, the two words are only interchangeable when talking about "12:00 p.m. (=
'noon')".

Strictly speaking, however, it is always better to use 「正午」 when referring to
"noon" in order to avoid any ambiguity.
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2014-09-11T12:38:07.013
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2014-09-11T12:58:43.183
2014-09-11T12:58:43.183
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answer
[正午](http://dictionary.goo.ne.jp/leaf/jn2/108227/m0u/%E6%AD%A3%E5%8D%88/) is
'noon' as in 12:00 on a 24h clock.

[昼](http://dictionary.goo.ne.jp/leaf/jn2/188633/m0u/%E3%81%B2%E3%82%8B/) can
have the same meaning (2 in the dictionary) or just refer to the
afternoon/daytime in general (1 in the dictionary).
CC BY-SA 3.0
2014-09-11T12:40:09.360
18649
2014-09-11T12:40:09.360
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answer