The Cosmic Calendar | Cosmos: A Spacetime Odyssey

the cosmic calendar begins on January
1st with the birth of our universe it
contains everything that’s happened
since then up to now which on this
calendar is midnight December 31st on
this scale every month represents about
a billion years every day represents
nearly 40 million years let’s go back as
far as we can to the very first moment
the universe January 1st the Big Bang
it’s as far back as we can see in time
for now