It's not a problem for Wolfram|Alpha. (-:
http://www.wolframalpha.com/input/?i=6+AM+Iceland+in+San+Fra...
http://www.wolframalpha.com/input/?i=7%3A30+PM+MST+in+Arizon...
37 karma · joined January 16, 2013
http://www.wolframalpha.com/input/?i=6+AM+Iceland+in+San+Fra...
http://www.wolframalpha.com/input/?i=7%3A30+PM+MST+in+Arizon...