A '''day''' is the amount of time it takes for the [[earth]] turn once around its axis: 24 hours. It can also be defined as 86,400 [[SI]] seconds.<ref>[http://asa.usno.navy.mil/SecM/Glossary.html#day The Astronomical Almanac]</ref>
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A '''day''' is the amount of time it takes for the [[earth]] turn once around its axis: 24 hours. It can also be defined as 86,400 [[SI]] seconds.<ref>[http://asa.usno.navy.mil/SecM/Glossary.html#day The Astronomical Almanac]</ref> [[God]] created the heavens and the earth in seven days.<ref>Genesis 1:1-2:24</ref>