Everything about Noon totally explained
Noon (also
midday) is the hour of 12:00 pm (1200) in an observer's local time zone, or more loosely, a time near the middle of the day when workers in many countries take a meal break. The scientific term
solar noon describes the moment when the sun crosses the meridian in
apparent solar time.
The
opposite of noon is
midnight.
Etymology
The word "noon" is derived from Latin
nona hora, the ninth hour of the day. The Roman and Western European medieval monastic day began at 6:00 am (0600) by modern timekeeping, so the ninth hour began at what is now 2:00 pm (1400). In English, the meaning of the word shifted to
midday by the year 1100 CE.
Solar noon
Solar noon is the moment when the sun appears the highest in the
sky (nearest
zenith), compared to its positions during the rest of the day. It occurs when the Sun is
transitting the
celestial meridian. This is also the origin of the terms
ante meridiem and
post meridiem as noted above. The Sun is directly overhead at solar noon at the
equator on the
equinoxes; at
Tropic of Cancer (
latitude 23° 26′ 22″ N) on the June
solstice; and at
Tropic of Capricorn (23° 26′ 22″ S) on the December solstice. Due to the effects of the use of
standard time,
daylight saving time, and the
equation of time, clock noon and solar noon rarely coincide.
Further Information
Get more info on 'Noon'.
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