Question

Why is 5.30p.m in India and 12 noon in London?

Answer 1

$\huge\red{\underline{\mathfrak{Andwer}}}$

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✌It is due rotation and revolution of the earth

✌IST (Indian standard time)passes from India. IST is with the difference of 5:30 to the greenwich mean time(GMT)that passes from London

hence, There is great difference in time periods

Answer 2

World time

While in theory, the concept of a single worldwide universal time-scale may have been conceived of many centuries ago, in practicality the technical ability to create and maintain such a time-scale did not become possible until the mid-19th century. The timescale adopted was Greenwich Mean Time, created in 1847. A few countries have replaced it with Coordinated Universal Time, UTC.

Time

Dimension in which events can be ordered from the past through the present into the future

Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past, through the present, to the future. Time is a component quantity of various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious experience. Time is often referred to as a fourth dimension, along with three spatial dimensions.

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-Alex