Sun "sun-disc" in hieroglyphs

The ancient Egyptian Sun hieroglyph is Gardiner sign listed no. N5 for the sun-disc;^[1] it is also one of the hieroglyphs that refers to the god Ra.

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The sun hieroglyph is used in the ancient Egyptian language hieroglyphs as a determinative to refer to events of time, for example when referring to '"day xx" (of month yy') . Even the "snap-of-the-finger", a 'moment', or 'instant' of time is represented using a Hippopotamus head (hieroglyph), Gardiner no. F3: , with the sun-disc: , as the time determinative in a hieroglyphic composition block.

("instant")("moment"of"time")

In the 24th century BC Palermo Stone, the sun hieroglyph is used on the Palermo Piece-(obverse) of the 7-piece Palermo Stone to identify dates, or specific "day-events", ..."day of ...." A few of the King Year-Register's are dates only for example in Row V (of VI rows):

For: "Month 2, , Day 23" (number 10, 10, 3).

Some other common hieroglyphs based on the sun hieroglyph, are the Sun-with-rays (hieroglyph), Gardiner no. N8: , and Sun-rising (hieroglyph)-(Coronations, "Appearance of..."-Palermo Stone), no. N28. . In the 24th century BC Palermo Stone: "Appearance of the King of the South and Appearance of the King of the North".

Ra, the Sun-god is Gardiner listed no. C1, of the listed: Anthropomorphic Deities–(more than 20 listed, and other Gardiner unlisted forms used in Ancient Egypt). The God Ra is shown with a sun-disc upon his head – or another common form with the Sun disc, encircled with Uraeus, (the cobra):