On Tuesday, January 20, 2015 at 6:41:53 PM UTC-6, Sean Fidler wrote:
Dave - I hope you are kidding!

My take is that when Dave says "day long" he is referring to the using all of the soarable part of the day and not "dawn to dusk".

Regardless, U.S. regionals mostly run tasks in the 2.50-3.5 hour range right in the heart of the soarable part of the day. From what I have been told, the Europeans start earlier and go right until the last gasp of lift or light, whichever comes first. Lots of land-outs that way.