Greenock - have a look at
this site, its in Swedish but you'll be able to follow it. Scroll down until you hit one of the years (eg År 2001, 2002, 2009 etc) and click on one of the dates - at the bottom of the (each) diary page you will see the time of day when Sören caught the pike, the rest of the info is temperature wind etc
Sören Essebo has been FFishing for Pike since the early '70's and he has caught hundreds and hundreds of Pike on the Fly, his web-based records (and he is meticulous) go back to 2001. Admittedly the fish are caught in the Baltic which is a tad different to a Loch but I think you might be able to gleam some info regarding time of day when the fish seem to feed.
Have fun learning Swedish