Time can be defined as the indefinite progression of events within the past, present and future. In other words, time can be aligned to the relativity of the events and without the validity of events time literally has no meaning. Research studies state that a unit of time can be defined as specific time interval that is used in order to express the time duration with the help of a standard unit. The standard unit of time which is also known as the SI is Seconds (S). A Second can be defined as the 9 billionth oscillation of the Caesium atom. As per the definition propounded by the National Institute of Standards and Technology, the specific time duration equivalent to 9 192631 770 period of radiation that corresponds to the transition between the 2 hyperfine level of the ground state of the Cs (Caesium-133) atom is known as one second. Research studies further reveal that time was basically determined by the movement of the celestial objects sun and the moon in the historic times. The sun based time was determined by the duration taken by the earth to complete one revolution around the sun. Some of the examples of sun based years include Olympiad equivalent to 4 years, lustrum equivalent to five years, decade equivalent to 10 years, indiction equivalent to 15 years, century (100 years) and a millennium (1000 years).  Moon based year can be defined as the time duration taken by the moon to complete one revolution around the earth.  Historic studies also find the mention of celestial sphere based time which is basically the time taken by the stars and constellations to move across the sky. Earth based times are based on the earth’s rotational movement and include units such as a week, a fortnight, minutes and seconds.

Now, since a year has 365 days, and one day is equivalent to 86400 seconds.

Therefore, 365 days would be equivalent to (365*86400) S = 3,15,36,000 S.