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Earth - longitude and time, International date line (International date…
Earth - longitude and time, International date line
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Standard Time - to avoid confusion, we follow uniform time throughout a country/ region
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Time zone - large countries with vast longitudinal extent have more than one timezone. for example Russia 11 and Australia 3 time zones
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Sir sandford Fleming led the fight in Canada for Standard Time and for an international agreement on Prime Meridian
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International date line
an imaginary line agreed internationally,180 degree with some deviations to accommodate certain land areas
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Deviating at aleutian islands, fiji, samoa and Gilbert Islands
A new day first appears on the earth at the Midnight at IDL advances westward finally covering the entire surface
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IDL is middle of time zone, therefore only change in calendar and not in time
Daylight savings time - it takes advantage of Summer extra Daylight, little or no savings for tropical region
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