Ancient Babylonians, or possibly an earlier civilisation.
http://wiki.answers.com/Q/Who_invented_sundials
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The first sundials were thought to have been used at around 3,500 BC (about 5,500 years ago). As they were first used such a long time ago, no one knows exactly who invented them. However particular specialized models have been invented at ...
http://wiki.answers.com/Q/Who_invented_the_first_sundia...
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Sundial - Wikipedia, the free encyclopedia
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A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) ...
en.wikipedia.org/wiki/Sundial
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Their moving shadows formed a kind of sundial, enabling citizens to ... Because the length of the day varies with the season, these hours likewise vary in length from season to season and are thus known as “temporary hours.” (“Equal hours” were decided upon about 1300 AD, when mechanical clocks were invented.) ;
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www.accuratesundials.com/site/591582/page/143772
www.accuratesundials.com/site/591582/page/143772
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Of course there is the immediate question of what Aristarchus invented, and Vitruvius explains that he invented a sundial in the shape of a hemispherical bowl with a pointer to cast shadows placed in the m
http://www-history.mcs.st-andrews.ac.uk/Biographies/Ari...
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The sundial was still the most popular way of keeping time until watches were invented making it easier for people to tell time wherever they were.
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sln.fi.edu/time/Journey/Sundials/aboutsd.htm
sln.fi.edu/time/Journey/Sundials/aboutsd.htm
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The hemicycle, said to have been invented about 300 BCE, removed the useless half of the hemisphere to give an appearance of a half-bowl cut into the edge of a squared block. By 30 BCE, Vitruvius could describe 13 different sundial styles in use in Greece, Asia Minor, and Italy.
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physics.nist.gov/GenInt/Time/early.html
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While modern day timepieces have long-since replaced the practical usefulness of the ancient sundial, there remains a sense ... It is not known exactly when the sundial was invented, or what people invented it. Sundials can be found in many ancient civilizations, including the Babylonian, Greek, Egyptian, and Roman ages.
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www.abirdshome.com/sundials.html
www.abirdshome.com/sundials.html
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WHO: The first model of the sundial was invented by the Egyptians. However, other sundials were created later by other people such as the Greeks. WHERE: Egypt and Greece ; WHEN:The first ones around 4000-3500 B.C. The other sundials were created at different times after 3500.
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www.summercore.com/cp19798/INVBarad.html
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