Regarding our parent, I doubt Macedonia is in CE(S)T. Greece definitely is not. Except they changed since I have been there the last time. (To lazy to look that up)
Macedonia is in CET, as well as everything north of it (Serbia, Hungary, Poland...). Both Serbia and Macedonia still keep CET as part of Yugoslavian legacy, though geographically, IMHO, it would make sense to shift a timezone in their time zone, since we are on the far east of our timezone. We get very early sunrise and if you work 8-5 or 9-6, you don't see much daylight after work except in the summer.
Greece is the odd one, but if you look at the map, you'll notice half the country, including Athens, are quite to the east compared to e.g. Skopje and Belgrade, so it makes sense for them.