[Lonesome in Massachussets]

The article is not perfectly clear. I think he said the length of the day might be shortened by approximately 3 microseconds. IF - contary to fact - the earth rotated at a uniform unchanging rate then a step change of 0.000003 seconds would mean the length of the would change from 86400 to 86399.999997 seconds per day. You do the math from here.

[Jorge]

IF - contary to fact - the earth rotated at a uniform unchanging rate then a step change of 0.000003 seconds would mean the length of the would change from 86400 to 86399.999997 seconds per day.

Now I'm getting depressed.