Change time scale yaxis

[scandari]

Hello, I'm new to gnuplot. Want to obtain this sort of plot: Loading Image...
This is my code but I can't change y scale :(
----------
$TIMES << EOT
2019-01-08 00:14
2019-05-08 03:14
2019-05-07 22:08
2019-08-07 22:08
EOT

set xtics time format "%m/%d"
set ytics time format "%H:%M"
set xlabel "Date (mm/dd)" font "Times, 12"
set ylabel "Time Of Day(hh:mm)" font "Times, 12"
set key tmargin reverse Left

set xrange [strptime("%Y-%m-%d","2019-01-01"):strptime("%Y-%m-%d","2019-10-30")]

plot $TIMES using (timecolumn(1,"%Y-%m-%d")) : (timecolumn(2,"%H:%M")) with points
-----------
Do you have suggestions? Thanks.

[Karl Ratzsch]

Post by scandari
Hello, I'm new to gnuplot. Want to obtain this sort of plot: https://i.stack.imgur.com/VV4Ex.png
This is my code but I can't change y scale :(
----------
$TIMES << EOT
2019-01-08 00:14
2019-05-08 03:14
2019-05-07 22:08
2019-08-07 22:08
EOT
set xtics time format "%m/%d"
set ytics time format "%H:%M"
set xlabel "Date (mm/dd)" font "Times, 12"
set ylabel "Time Of Day(hh:mm)" font "Times, 12"
set key tmargin reverse Left
set xrange [strptime("%Y-%m-%d","2019-01-01"):strptime("%Y-%m-%d","2019-10-30")]
plot $TIMES using (timecolumn(1,"%Y-%m-%d")) : (timecolumn(2,"%H:%M")) with points
-----------
Do you have suggestions? Thanks.

Hope there is no typo in the below:

wrap(x) = (x>12 ? x-24 : x)

set yrange [-13*3600:13*3600]
set ytics (-12 "noon", -6 "6pm", 0 "midnight", 6 "6am", 12 "noon")

plot $TIMES using (timecolumn(1,"%Y-%m-%d")) :
(wrap(timecolumn(2,"%H:%M"))) with points, 0 dt 2