Converting time formats and comparing them

Hi,
Id like to know please, con can I convert a format time like 0.2s to its equivalent in format '00:00:06' and after all, comparing between two new format times like:
if('00:00:06' < '00:00:09'){}

Thanks to all of you!

This thread has a solution from @MarkHunte Showing the timecode in the document - #7 by MarkHunte

	// Run this every 100 milliseconds 
	window.setInterval(function(){
	
	// Gets the raw timecode in seconds and fractions of a second
  	var timecodevalue = hypeDocument.currentTimeInTimelineNamed('Main Timeline'); 
	
    // Hype has 30 frames a second
    var fps = 30;
	var totalSeconds = Math.floor(timecodevalue);
 
	var hours = Math.floor(totalSeconds /3600);
   	var minutes = Math.floor((totalSeconds - hours*3600)/60);
   	var seconds = totalSeconds - (hours*3600 + minutes*60);
	 
	// This subtracts the value in seconds from the raw timecode value and converts it to a two number with no decimal points.
	var frames = ((timecodevalue - totalSeconds) * 30).toFixed(0);	
	
	// Raw number of seconds:
	document.getElementById("timecode").innerHTML = timecodevalue;
	
	// Seconds + Frames
	// document.getElementById("timecodeWithFrames").innerHTML = seconds.toString() + ' ' + frames.toString();

 
	document.getElementById("timecodeWithFrames").innerHTML = hours + ' : ' + minutes + ' : ' + seconds + ' : ' + frames;

	
}, 100);