131607 2014-04-14 00:46:08 -0700 Changing system time when using SetInterval() 2014-04-14 00:46:08 -0700 1 1 1 Unclassified WebKit New Bugs 525.x (Safari 3.2) PC Windows 8 NEW P2 Normal --- 1 Marek.Grochowski webkit-unassigned oldest_to_newest 1000422 0 Marek.Grochowski 2014-04-14 00:46:08 -0700 Using setInterval() or setTimeout() in Javascript code and changing system time backward for example 1 hour causes browser (newest Safari)/ or engine (older version of QT WebKit) to freeze. Sample code: HTML: <p id="date"></p> JS: setInterval(SetTime, 1000); function SetTime() { document.getElementById('date').textContent=new Date(); } OR: (function loop() { document.getElementById('date').textContent=new Date(); setTimeout(loop, 1000); })(); StackOverflow question: http://stackoverflow.com/questions/23013324/webkit-setinterval-and-system-time-change