FlipClock.js: looping a countdown, previous answer is not working 100%

So, this is pretty much the question, and the answer (probably working then)
https://www.experts-exchange.com/questions/28681664/Flipclock-js-How-to-restart-countdown-timer-when-it-reaches-0.html

It seems that now the code should look like:

clock = $('.clock').FlipClock(3, { 
	clockFace: 'MinuteCounter',
	countdown: true,
	callbacks: {
		stop: 	function(){
					clock.setTime(60*60)
					clock.start();
				}
	}
});

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but the output looks like this:

00:01
59:59
00:00
59:58
59:57
..and so on.
countdown-to-christmas---mins-and-s.html