The InternationalDateLine (IDL)
is an imaginary line of longitude on the EarthтАЩs surface located at about 180
degrees east (or west) of the Greenwich Meridian.It is an imaginary zig zag line at 180-degree
meridian.
The International Date
Line (IDL) passes through the Pacific Ocean
The time difference on
either side of this line is 24 hours. So, the date changes as soon as one
crosses this line.
Some groups of Islands
(Polynesia, Melanesia, Micronesia) fall on either of the dateline. So if
the dateline was straight, then two regions of the same Island Country or
Island group would fall under different date zones. Thus, to avoid any
confusion of date, this line is drawn through where the sea lies and not land.
Hence, the IDL is drawn in a zig-zag manner.
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