I hadn't a clue but googled and found ... http://www.straightdope.com/mailbag/m25or6to4.html and it seems that scotzoid is accurate after you read through the ramble... even though i was too sleepy for it all to sink in for a bit, but now I got it... 25 or 26 to 4...3:35 or 3:34 as he said.