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DateTimeFormatter dtf = DateTimeFormatter.ofPattern("hh:mm:ss");
LocalTime lt = LocalTime.now();
System.out.println(dtf.format(lt)); //08:03:32
dtf = DateTimeFormatter.ofPattern("hh:mm:ss a");
lt = LocalTime.now();
System.out.println(dtf.format(lt)); //08:03:32 PM
dtf = DateTimeFormatter.ofPattern("HH:mm");
lt = LocalTime.now();
System.out.println(dtf.format(lt)); //20:03