Witcher 1 and 2 take place further south on the map than Witcher 3 though.
Wyzima is sooooooooooooooo far away, right.... please, take a look at the world map of the game (if you own the one, that comes by buying TW2 EE, there you can clearly see, where all the spots are, like for how far away for example is Loc Muinne from Vergen and how far that again is away from Novigrad/Wyzima...)
We aren't talking here about distances of several thousands of miles, like the distance between europe and the north/southpole. The distance between say Novigrad and Loc Muine for example is compareable to like the distance between Germany to Poland, if not alot lesser.
Everythign of the game world which we can explore is in the same time zone.
However, if someone can show here a kind of game lore argument, which makes it clear, that the day in redanian/temerian regions or in skellige starts already at 3 to 4 AM, then I've nothing said at all.
Otherwise I would take it to be an alot more appropriate game design to change it to what is actually normal for an after an european medieval word designed game and that would be that the day begins between 5 to 6 AM and not between 3-4 AM...
Even if there would be somethign so obsolete like summer/ wintertime in this game, a day would then begin earliest between 4 to 5 AM. everythign around 3 AM is way too early and immersion breaking, like also way too bright nights.
Nights have to be so dark, that you barely can see anythign without either a light source, or using a cat potion in case you go into a very dark cave for example or into a very dark dungeon that has no light sources where you can use IGNI on.
Thats the kind of realism, that adds thne also some nice creepiness to the game, especialyl with fitting background sounds/music ect. to set up the right mood, that its becoming at night alot more dangerous, when you can hardly also see something without helpful tools like the torch or using a cat potion.
theres no point in addign such features, when you design then the game so, that these things are totally useless and are practially NEVER needed to be used at all for a single freaking moment in the whole game ...