A graph of the years past from 1972 and the number of leap seconds added
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DATA
The years that leap seconds where added
Year Leap Seconds
1972 2
1973 1
1974 1
1975 1
1976 1
1977 1
1978 1
1979 1
1980 0
1981 1
1982 1
1983 1
1984 0
1985 1
1986 0
1987 1
1988 0
1989 1
1990 1
1991 0
1992 1
1993 1
1994 1
1995 1
1996 0
1997 1
1998 1
1999 0
2000 0
2001 0
2002 0
2003 0
2004 0
2005 1
2006 0
2007 0
2008 1
2009 0
2010 0
2011 0
2012 1
2013 0
2014 0
2015 1
2016 1
2017 0
you showed an antomic clock SKIPPING a second.
Atomic clocks dont make the earth rotates slower
Show me the earth rotating slower by 27 sec since 1973 here :
Put up or shut up
Oh btw yesterday was 86400.0005597 sec long or s hour and 0.5597 ms thats not even longer by 1 sec ?
Almost like if this is true , right ?

:
Length of the day today 86400.0005597 seconds thats the Universal time
International Atomic Time 86400 sec a day.
Difference: 0.0005597
remember we have this difference because of the definitions of a day in the two system Atomic time measures the day as 86400 si seconds and universal time refers to the Earth's rotation around its own axis.
What happens when that remains constant for a year ? Means no change in earth angular speed and other factors.
Lets count Days together !
Chose a fairly big number let pass 1787 day
In Atomic Time its : 86400.0005597*1787 = 154396800
In Universal Time : 86400.0005597*1787 = 154396801
Did you noticed something ? 154396801
Thats in red right there is your Leap second, that means we have to LEAP that second to allow Universal time to catch up with the day counting of Atomic time. And Earth not even slowed a bit in our example, we just had the initial difference based on the definitions.