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Wikipedia This page uses content from the English Wikipedia. The original article was at Nychthemeron. The list of authors can be seen in the page history. As with the Calendar Wikia, the text of Wikipedia is available under Creative Commons License. See Wikia:Licensing.


Nychthemeron, or Nycthemeron ( from Greek nykt- "night", (h)emera "day" ) is a period of 24 consecutive hours. It is sometimes used, especially in technical literature, to avoid the ambiguity inherent in the term "day."

It is the period of time that a calendar normally labels with a date.

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