Lunar calendar - lunar calendar

Japanese: 太陰暦 - たいいんれき
Lunar calendar - lunar calendar

A calendar system that counts days based only on the lunar month (29.53059 days) of the waxing and waning moon. It is also called the lunar calendar for short. Therefore, it is unrelated to the seasonal cycle and is not suitable for agricultural purposes. It is thought that when calendars first came into being, all peoples and countries would have used the lunar calendar, but today, the only calendar that follows this system is the Islamic calendar (Mohammedan calendar, Huihui calendar). In a broad sense, the lunar calendar also includes the lunar-solar calendar, but when it is necessary to make a distinction, the lunar calendar is called a pure lunar calendar.

[Toshio Watanabe]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

月の満ち欠けの周期の朔望(さくぼう)月(29.53059日)だけを基本周期として日を数える暦法。略して陰暦ともいう。したがって季節の循環周期に無関係であり、農事には適さない。暦の発生当時はいずれの民族・国家でも太陰暦であったであろうと考えられるが、現在この暦法に従うものとしてはイスラム暦(マホメット暦、回回(フイフイ)暦)だけである。広義には太陰太陽暦をも含めて太陰暦というが、とくに区別する必要があるときには太陰暦を純太陰暦という。

[渡辺敏夫]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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