Time is an abstract concept which is so intricate in its nature that is really hard for most people to imagine and explain. It’s probably because it is a notion with fundamental, self-evident, irreversible, infinite nature. Plus, is not something you can see, touch or experience with your senses. Time is defined as a continuous process of existence or reality and the sequence of past, present, and future. It is represented by change and dynamics and measured by motion. We experience time almost the same as we experience space. Time and space are closely related to different define events.
In classical physics, time is absolute and constant. It is a fundamental quantity or aspect of reality that cannot be expressed in terms of any other such quantity such as distance, velocity, mass, temperature, energy, and weight. (Most of those are related to each other by various physical laws). As defined by Newton and considered to be going at the same rate everywhere in the universe, Time is always ticking in the background at invariable, consistent speed without regard to anything external.
However, according to Einstein’s theory of relativity, the progress of time is not universal but relative and dependent on who is measuring it. In addition, time passes differently for different observers based on the speed and acceleration and the spatial reference frame of the observer. Einstein has also described Time as inseparably and fundamentally linked to space forming the concept of Space-time continuum. This continuum combines the three dimensions of space – length, height, width (also depth or breadth, any 3 out of these 5 can be selected if they lie on different planes) and the dimension of time and is thus, four-dimensional.
Time can be measured in seconds, minutes, hours, days, weeks, months, years, decades, centuries, millennia, microseconds, nanoseconds and so on.
|1 Day =||1||2.7379 x 10-5||0.00027379||24||2.7379 x 10-6||1440||0.0329||86400000||8.64 x 1013||86400||0.1429||0.6||0.002738|
|1 Century =||36524||1||10||876582||0.1||52594920||1200||3.1557 x 1012||3.1557 x 1018||3155695200||5218||21915||100|
|1 Decade =||3652||0.1||1||87658||0.01||5259492||120||3.1557 x 1011||3.1557 x 1017||315569520||521.775||2191||10|
|1 Hour =||0.0417||1.1408 x 10-6||1.1408 x 10-5||1||1.1408 x 10-7||60||0.001369||3600000||3.6 x 1012||3600||0.005952||0.025||0.00011408|
|1 Millenium =||365243||10||100||8765820||1||525949200||12000||3.1557 x 1013||3.1557 x 1019||3.1557 x 1010||52178||219146||1000|
|1 Minute =||0.00069444||1.9013 x 10-8||1.9013 x 10-7||0.0167||1.9013 x 10-9||1||2.2816 x 10-5||60000||6 x 1010||60||9.9206 x 10-5||0.00041667||1.9013 x 10-6|
|1 Month =||30.4369||0.00083333||0.008333||730.485||8.3333 x 10-5||43829||1||2629746000||2.6297 x 1015||2629746||4.3481||18.2621||0.0833|
|1 Millisecond =||1.1574 x 10-8||3.1689 x 10-13||3.1689 x 10-12||2.7778 x 10-7||3.1689 x 10-14||1.6667 x 10-5||3.8026 x 10-10||1||1000000||0.001||1.6534 x 10-9||6.9444 x 10-9||3.1689 x 10-11|
|1 Nanosecond =||1.1574 x 10-14||3.1689 x 10-19||3.1689 x 10-18||2.7778 x 10-13||3.1689 x 10-20||1.6667 x 10-11||3.8026 x 10-16||1 x 10-6||1||1 x 10-9||1.6534 x 10-15||6.9444 x 10-15||3.1689 x 10-17|
|1 Second =||1.1574 x 10-5||3.1689 x 10-10||3.1689 x 10-9||0.00027778||3.1689 x 10-11||0.0167||3.8026 x 10-7||1000||1000000000||1||1.6534 x 10-6||6.9444 x 10-6||3.1689 x 10-8|
|1 Week =||7||0.00019165||0.001917||168||1.9165 x 10-5||10080||0.23||604800000||6.048 x 1014||604800||1||4.2||0.0192|
|1 Work Week =||1.6667||4.5632 x 10-5||0.00045632||40||4.5632 x 10-6||2400||0.0548||144000000||1.44 x 1014||144000||0.2381||1||0.004563|
|1 Year =||365.2425||0.01||0.1||8766||0.001||525949||12||3.1557 x 1010||3.1557 x 1016||31556952||52.1775||219.1455||1|