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icon Seconds/Day

I have used USNO and National Research Council Canada clocks for comparison to my computer clock and to each other. 

April 23 8 am - USNO and CAN are even with my computer clock. 
April 24 8 am - USNO and CAN are 4 seconds behind computer clock. 
April 25 8 am - USNO and CAN are 9 seconds behind computer clock. 
April 26 8 AM - USNO and CAN are 11 seconds behind computer clock. 
April 27 8 AM - USNO and CAN are 12 seconds behind computer clock. 
April 28 8 AM - USNO 19 seconds behind computer clock,
                CAN Clock 17 seconds behind computer clock.
April 29 8 AM - USNO clock 22 seconds behind computer clock,
                CAN clock 19 seconds behind computer clock.
April 30 8 AM - USNO clock 28 seconds behind computer clock,
                CAN clock 24 seconds behind computer clock. 
May 1 8 AM - USNO clock 34 seconds behind computer clock, 
             CAN clock 30 seconds behind computer clock. 
May 2 8 AM - USNO clock 40 seconds behind computer clock,
             CAN clock 35 seconds behind computer clock.
May 3 8 AM - USNO clock 46 seconds behind computer clock,
             CAN clock 40 seconds behind computer clock. 
May 4 8 AM - USNO clock 48 seconds behind computer clock, 
             CAN clock 42 seconds behind computer clock.

Offered by J. William Dell.

My computer clock has gained 11 seconds over USNO time since April 21. I'm basically just watching for any super big jumps now as it has been steadily gaining almost a second a day.

Offered by Steve.

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