Gnuplot
Produced by GNUPLOT 5.4 patchlevel 3
-1000
-800
-600
-400
-200
0
1200
1400
1600
1800
2000
2200
2400
Difference from (proleptic) TT [s]
Besselian epoch [yr]
gnuplot_plot_1
gnuplot_plot_2
gnuplot_plot_3
gnuplot_plot_4
'deltatmshz2020.dat' using 1:(($1 < c04xmin) ? (-$2) : 1/0)
'deltatmshz2020.dat' using 1:(($1 < c04xmin) ? (-$2) : 1/0)
gnuplot_plot_6
gnuplot_plot_7
gnuplot_plot_8
gnuplot_plot_9
gnuplot_plot_10
gnuplot_plot_11
gnuplot_plot_12
gnuplot_plot_13
gnuplot_plot_14
gnuplot_plot_15
gnuplot_plot_16
gnuplot_plot_17
gnuplot_plot_18
gnuplot_plot_19
gnuplot_plot_20
gnuplot_plot_21
gnuplot_plot_22
gnuplot_plot_23
gnuplot_plot_24
observed UT (time according to the sun)
extrapolated UT (time according to the sun)
broadcast time signals
according to Torino colloquium
starting around year 2022
Broadcast time signals
will almost certainly
abandon leap seconds
What name will that time scale have?
UTC, and thus all civil time?
Or TI, for navigation and computers?
Without leap seconds UTC would cease
to correspond to the count of calendar days
as determined by measuring earth rotation.
Steve Allen https://www.ucolick.org/~sla/leapsecs/
Future Time Scales -- The ITU-R Decision