Last Updated:2025/11/20
(astronomy) one day of solar time, the time between successive noons; the time in which a planet such as Earth apparently rotates once around its axis, relative to the sun (on Earth about 24 hours as an average - the length of solar day is not constant throughout the year)
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solar day
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Source Word
solar day
Noun
Japanese Meaning
(天文学)太陽に基づいて定義される1日の周期。つまり、正午から次の正午までの経過時間で、地球の場合は平均して約24時間ですが、季節により若干変動する。
( plural )