2. Definition Of time :
Time is something we deal with everyday and something
that everyone thinks they understand.
The indefinite continued progress of existence and events
in the past, present and future regarded as whole.
Clearly time is not an object or substance we can touch are see.
3. Measurement Of Time:
Time provides us with a measure of change by putting
dates on moments fixing the duration of events and specifying
which events happen before which other events in Order to that
some method of time measurement is need.
There are two points :
* Clock
* Calender
4. Clock:
Clock is a physical mechanism that counts the ongoing passage
of time
This is mainly used for more accurate time keeping and for
periods of less than a day
Calendar:
A calendar is a mathematical abstraction used for calculating
more extensive period of time