TIME has been given the same type of importance in the science of astrology, which has been given to money in Economics, to fire in Chemistry and to wheel in Physics.
Our ancient sages had knowledge of the subtlest division of the time. They got this knowledge with the help of their divine-sight; in their deep state of meditation. They also knew about PAST, PRESENT and FUTURE with the same divine sight.

According to our scriptures, 'the time taken to tear apart the softest of petals of a lotus' is called 'TRUTI'

100 Trutis make 1 Lub
30 Lub make 1 Nimesh
27 Nimesh make 1 Guru Akshar
10 Guru Akshar Make 1 Pran
6 pran Vighatika make 1 Ghatika or Dand
60 Ghati make 1 day and night

That means, in a day and night, there are 17,49,60,000,00 Trutis altogether, we may just wonder about the genious of our ancient sages and Rishis, because today, inspite of having facilities of modern laboratories and equipments, the modern science could identify 1 (one) second as the shortest division of the time. Thus, according to Western science, there are 86,400 seconds in a day and night, whereas in Indian science, a day and night consists of 17,49,60,000,00 Trutis.

According to another system, the division of time has been made as follows :

60 Tatparas = 1 Paras
60 Paras = 1 Vilipta
60 Vilipta = 1 Lipta
60 Lipta = 1 Ghatika (Dand)
60 Ghatika = 1 Day & Night

Therefore, it is clear that there are 46,65,60,000,00 Tatparas in a day and night.


SATYUG 4,32,000 YEARS X 4 = 17,28,000 YEARS
TRETA 4,32,000 YEARS X 3 = 12,96,000 YEARS
DWAPAR 4,32,000 YEARS X 2 = 8,64,000 YEARS
KALIYUG 4,32,000 YEARS X 1 = 4,32,000 YEARS

71 MAHAYUG = 43,20,000X71 = 1 MANVANTAR
1 MANVANTAR = 30,6720,000 YEARS
14 MANVANTAR = 4,29,40,80,000 YEARS
(There are 14 Manvantars)

The earth remains submerged in the water for the period of 8,64,000 years i.e half the number of Satyug, before the start of each Manvantar, it also remains submerged in the water for the same number of years, i.e. 8,64,000 years, after the completion of each Manvantar.
So in 14 Manvantars the number of years
17,28,000 x 15 = 2,59,20,000
(Number of year in Satyug)
+ 14 Manvantar = 42,9, 40,80,000
1 Kalpa = 43,2,0000000 years

One day & night of Brahma = 4,320,000 Mahayug * 1000 = 4,32,00,00,000 years

Since the one moment in the life of Brahma is considered to be of our 10 years, therefore the age of Brahma in 100 years will be

4,32,00,00,000 x 360 x 100 = 155520 00 000 00 years

Therefore, it is quite clear that our ancient Rishis, with the help of their divine sight, had calculated the most minute and the most subtle division of time, as well as the most greater division, for the benefit of the mankind and which are followed by millions of Hindus even today.


(I make a resolution to begin this auspicious work in the second PRAHAR (a period of three hours) of the day Brahma, in the KALPA named 'SHVETA VAARAAH' in the 28th YUGA OF 'VAIVASHVAT MANVANTARA', in the first part of the Kali Yuga etc.)

That implies that there are 14 Manvantaras altogether. The present period is passing through the seventh Manvantara.

One Manvantara consists of 71 Mahayugs, out of which 27 Mahayugs have already passed. We are passing through the first phase of the Kali Yuga which itself is the third Yuga of the 28th Mahayuga and which has come after the passing of Satya Yuga, Treta and Dwapar Yuga.

The year of the Sankalpa can be ascertained from the beginning of the Kalpa as follows.

The time period of Manvantara (exclusive period, when the earth is submerged in water, in the beginning and in the end) = 30,67,20,000 years

1) Multiplying these years by 6 = 30,67,20,000 x 6 (Because we are in the midst of 7th Manvantara, of the Svetvaaraah Kalpa and 6 Manvantaras have already passed) = 1,84,03,00,000 years

The time period of Pralaya consists of 17,28,000 years since 7 Pralayas have passed, after the end of 6th Kalpa and before the beginning of 7th Kalpa, so 17,28,000x 7 = 1,20,96,000 years

After adding 1 2 2) we get

1,84,03, 00 000

+ 120 96 000

1,85, 23, 96 000 years

Therefore, after 1,85,24,16,000 years 'VAIVASVAT MANVANTARA' has started

2) 27 Mahayugs of Vaivasvat Manvantara have passed, 1 Mahayuga consists of 43,20,000 years. So after multiplying it with 27, we get,

43,20,000 x 27 = 11,66,40,000 years

+ 1,85,24,16,000 years

Total = 1,96,90,56,000 years

3) Now the time period of Kali Yuga in the 28th Yuga =

Time period of Satya Yuga = 17,28,000

Time period of Treta = 12,96,000

Time period of Dwapar = 8,64,000

TOTAL = 38,88,000

Since all the above three Yugas have already passed, it means that after 38,88,000 years, Kali Yuga came into existence.

4) Kali Yuga started on Bhadrapada,

Krishnapaksha -13th day, in Vyatipaat yoga at midnight, in the Aashlesha Nakshatra

And the age of the Kali Yuga has been fixed as 5101 years as till date that is Vikram Samvat 2057, Shaka 1922 and 2000 AD.

Sum of all the three Yugs = the Sum of 27 Mahayugas and Manvantar + the time period of Kali Yuga till date

1969056000 5101
1972949101 years

Kalpa consist of 4,32,00,00,000 years and out of these 1,97,29,49,101 years have passed

Therefore, the earth's existence, according to the methods, devised by our ancient sages, comes up to 1,97,29,49,101 years till date.

Many geologists too agree well with the age of the earth as given by our Rishis.

On 22nd of March 1920, while giving a lecture in Patna, Professor Satyacharan Chatterjee said that the age of the earth is 1,50,00,00,000 years. Sir J. Jeans, in his lecture on the subject of mysterious universe, considered that the earth exists since 2,00,00,00,000 years.