Grandma Science

According to Hindusim, time is measured in 'Kalpas' which is made up of 'yugas'. Here is the list of the various yugas and their time frame:

1 Krita Yuga     = 17,28,000 years (4 times Kali yuga)
1 Treta Yuga     = 12,96,000 years (3 times Kali yuga)
1 Dvapara Yuga   =  8,64,000 years (2 times kali yuga)
1 Kali Yuga      =  4,32,000 years
Total duration of four yugas  = 43,20,000 years = 1 Mahayuga
1 Mahayuga = sum total of 4 yugas
2000 Mahayugas = 1 Kalpa = 8,64,00,00,000 years
1 Kalpa = 1 day and night for god of creation, Brahma

Currently, nearly 1.95 billion years have elapsed in this Kalpa.

One thousand Mahayugas form one day of Brahma, i.e., 4.32 billion years. A similar expanse of time will make His one night.

According to modern science, a day has 24 hours which are made up of 60 minutes and each minute has 60 seconds.

1 day = 24*60*60 seconds = 86,400 seconds

Now,
1 Brahma day = 8,64,00,00,000 years
86,400 Brahma secs = 8,64,00,00,000 years
1 Brahma sec = 8,64,00,00,000/86,400 years = 1000 years

So a second in Brahma's day = 1000 years on earth.

Now, din't my grandma tell me that when I was a kid!!