This calculator requires the use of Javascript enabled and capable browsers. This creates and displays the time in Roman Numeral format in digital representation. The time is YOUR local time, in 24-hour format. The hours, minutes and seconds are separated by colons (:) in the display.
Unless you are a very old and knew Caesar personally, you probably don't have much use for Roman Numerals. They do show up in our society, however, quite regularly. You might also want to see our Roman Numeral Converter for a little background and some help with what you are seeing.