Similar to date-time-picker, except that the dialog box displayed by the button allows to select a time (and not a date/time).

Examples:

time30 {
    content: time-picker(attribute, value,
                         format, standard-omit-time-zone);
}

time41 {
    content: time-picker(format, pattern,
                         pattern, "HHmm",
                         language, en, 
                         country, "US",
                         columns, 10);
}