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International Dateline (ENG)

The document contains class notes on geographical concepts, including the distance between latitudes and longitudes, time zones, and the International Date Line. It highlights that the distance between two latitudes is approximately 111 km and that the maximum distance between longitudes occurs at the Equator. Additionally, it provides facts about India's standard meridian and time zone distribution, as well as the implications of crossing the International Date Line on date changes.

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37 views3 pages

International Dateline (ENG)

The document contains class notes on geographical concepts, including the distance between latitudes and longitudes, time zones, and the International Date Line. It highlights that the distance between two latitudes is approximately 111 km and that the maximum distance between longitudes occurs at the Equator. Additionally, it provides facts about India's standard meridian and time zone distribution, as well as the implications of crossing the International Date Line on date changes.

Uploaded by

aditya singh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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BCW Prelims Class Notes BPSC CONCEPT WALLAH

Student’s Space
Lecture - 3

Q:- The distance between two latitudes is equal to?(Source


NCERT)
A. 100 km
B. 101 km
C. 112 km
D. 111 km
Ans:-D
The distance between two latitudes (1° apart) is
approximately 111 kilometres.
Q: - The distance between two longitudes is maximum at?
(Sources:- NCERT)
A. Poles
B. Prime Meridian
C. Equator
D. Parallels
ANS:- C

The distance between two longitudes is maximum at the


Equator because the Earth’s shape is spherical, and the
circumference is largest at the Equator.

 Time zones

 World is divided into 24 Time zones.


 France has 13 (or 12) Time zones. The number depends
on whether we count disputed territory or not.
 Russia has 11 and India has one time zone.
 Standard Time zone of India passes through 82.5E and it
passes through states of UP, MP, Andhrapradesh,
Chhattisgarh and Odisha.
.. Mnemonics: - UMA CO..

BCW Website : www.bpscconceptwallah.com


BCW Telegram : https://t.me/bpscconceptwallah
BCW Prelims Class Notes BPSC CONCEPT WALLAH

Student’s Space

Fact to remember

 Tropic of cancer & Standard meridian meets each other


at “Surajpur” district of Chhattisgarh.
 Ghamapur (near Mirzapur) ,Uttarpradesh is often
called as “Greenwich” of India.
 Standard meridian passes through Mirzapur in Uttar
Pradesh.
 National Physics laboratory Delhi is responsible to look
after “Standard Time” of India.
 24N is the parallel that passes through maximum
states of India(10)
 Length of Day & Night is function of “Latitudes”.

International Date Line

 It is an imaginary line.
 It is not completely straight line (Zigzag).
 It passes mainly through water bodies like “Pacific
ocean” and Bering strait
 It divides continent of Asia and North America.

BCW Website : www.bpscconceptwallah.com


BCW Telegram : https://t.me/bpscconceptwallah
BCW Prelims Class Notes BPSC CONCEPT WALLAH

Student’s Space

When we travel from west to east, you gain a day (Subtract a


day) while when you travel from East to west you lose a day
(Add a day).so it is to be noted that date changes when we
cross International Date line.(Refer to class video for
understanding this concept)

BCW Website : www.bpscconceptwallah.com


BCW Telegram : https://t.me/bpscconceptwallah

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