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※ Timedifferencesbetweenregionsanddaylightsavingtimemaychangeduetocircumstancesofacountryorregion.
※ Atimedifferenceestablishedin15minuteor30minuteunitsisadoptedinverylimitedregions(ex.India).
Therearetimedifferencesaroundtheworldbasedon“CoordinatedUniversal
Time(UTC).” There are24regions(Time Zones)around the world with a
timedifferenceofonehour.Thissystemhasbeenadoptedinternationallyby
settingthetotaltimedifferencearoundtheworldas24hours.
Inaddition,DaylightSavingTime(SummerTime)isindividuallyadoptedin
someregions.
[WhatisUTC(CoordinatedUniversalTime)?]
UTCistheuniversalstandardtimecoordinatedthroughinternationalagreement.
Itisusedastheofficialtimearoundtheworld.UTCisdeterminedbyadding
aleapsecond toGMT(GreenwichMean Time), whichisdetermined through
astronomicalmeasurement,inordertokeeptheprecisetime.
[Whatissummertime(DST)?]
Summertimeisdaylightsavingtime.Advancingthewatchonehourtoprolong
daytime during longer daylight hours in summer. Daylight saving time has
beenadoptedinabout80countries,mainlyinEuropeandNorthAmerica.The
adoptionanddurationofdaylightsavingtimevarydependingonthecountry.
