I just wanted to ask what happens on the Daylight savings time date? You see when I bought the game as a wee lad I played it all the time and did quite well, think I even unlocked the 4th or 5th to last park, and had one heck of a really awesome, desert park (i forget the name but it had so much purchasable land it was insane).

Anyway I ended up getting on one day and found that all my hard work and unlocks had been erased because there was a bug with the daylight savings time and the game, it reset everything like I had just installed it, and my awesome desert park save wouldn't work because it hadn't been unlocked yet.

I was a tad miffed and really haven't played it much since, so does the GoG version fix this little annoying bug (i'm guessing yes but I want to be sure)? And thanks in advance for any answers.

Which maps was it? If you remember please tell me. I would love to know. :)
As for your problem:
I never encountered something like that, but if you fear something may happen,
just back up your save games, maybe on a USB stick or something.
The save games are in:

C:\Program Files\GOG.com\RollerCoaster Tycoon Deluxe\Saved Games
You may have to adjust depending on where you installed the game to,
but [gamedirectory]\Saved Games is where your saves are,
just back up the whole directory the day the time thing switches.