On my earlier post "Change time format on antiX os (Found trix)" I told you that if I can customize time format on antiX m8.5, I will inform you. This is the good news for you. Yes, at last I am able to change time format on my antiX operating system.
According to earlier post I clicked 'icewm preferences' at 'Control Center'. I search line number 514. But in my system's 'icewm preferences' there is only 130 line I found. I get 'time format' option at line 62. I changed the format "%H%M" to "%r". It worked. Result is shown below.