daylength
Hola Los Granjeros !
This is the best site I have found for sussing out your daylength, worldwide .....
http://www.gaisma.com/en/dir/001-continent.html
Sunrise to Sunset, Length, Change, Dawn to Dusk, Length, Change....
IMO you are looking at Dawn to Dusk not the far more frequently published Sunrise to Sunset times. This guide has proved accurate, unlike several others !
This year, as planed, my month old seedlings are growing happily & not going into flower when, last year, all my carefully nurtured clones were just ruining it all getting far too fluffy ..... and the seed grown plants harvest a week or two earlier.