6. Use the numbers from #2 to determine the time BACKWARDS from midnight (24:00) on "December 31st" and then the Calendar time on your cosmic calendar for each of the following events. Time should be in the form hh:mm:ss (eg. 12:34:24 is 12 hours, 34 min, 24 sec). Show a sample calculation.

Sample calculation for an event happening 5 X 106 y ago from today

(5 X 106 y) / (1.7 x 106 y/cal. hour) = 2.94 h
2.94 h - 2 h = 0.94 h (60 min/h) = 56.47 min
56.47 min - 56 min = 0.47 min (60 s/min) = 28 s
so 2 h 56 min 28 s ago from midnight (24 h) on Dec 31st.
23 h 59 min 60 s - 2 h 56 min 28 s = 21 h 3 min 32 s = 21:03:32




Important Events in Human Evolution

Event Years ago from Today Time back from Dec. 31 @24:00 Cal. Date Cal. Time
First Hominids 5 X 106 . 12/31 21:03:32
Modern Homo sapiens 3 X 105 . 12/31   :   :  
Domestication of First Animals 1 X 104 . 12/31   :   :  
Written History Starts 7 X 103 . 12/31   :   :  
USA Established 2.23 X 102 . 12/31 s ago
First Moon Landings 3 X 101 . 12/31 s ago
Invention of the World Wide Web 6 X 100 . 12/31 s ago

7. Now make your cosmic calendar by using the pages below.

Cosmic Year
Cosmic Month for December
Cosmic Day for Dec. 31st