Mine would have been almost 3 mins (would have been longer...)
I was driving back home, trip was about 4/5 hours and i busting to go really bad and knew i wasnt able to make it back in time, so i had to unbutten and unzip while driving so i can quickly wip it out when i gotten out of the car. Pulled into a car park that i know, few people were about and there was a cctv but i was in a well hidden area where they couldnt see anyway, as i stop open the door and wip it out and it just went and barely got my phone out to video it. And it just felt so good letting it all go and that how i know i done almost 3 mins of peeing when i was filming myself. Got back into the car and drove else where as need to go again quite soon after. There was a few waps flying about and was worried about my D getting stung!