Thanks, but I know the RTC isn’t isolated. The question I have is what effect this has on the games. (Please don’t say it resets the clock when a new game is started – I know it resets the clock, the question is what impact this has on the game being played). I guess this is kind of what I meant by the other answers being quite abstract. No one seems to know what actual impact the reset has on the games.
My specific worry is that it will generate something equivalent to the ‘Berry Glitch’ in Pokemon and stop berries from growing on trees etc. Is this the case? Or will it just mess up the clock in the bedroom of your house (if so who cares)?
First, let's make one thing clear. Just Ruby and Sapphire have the berry glitch, Emerald doesn't. So, if you only play Emerald you will never have any kind of issues.
Even in the case you really would like to play R/S you will still have some options to avoid this kind of problem:
- Easier option is to use a PC utility called GBATA to patch the roms before playing;
- Alternatively, you can link to Pokémon FireRed, LeafGreen or Emerald to change the clock on your save;
- Another option is to just use another game to change the clock to something after January 2, 2002 on your Everdrive x5 and the glitch won't affect your save. This must be done before 365 days pass after the begginning of your save file or it won't work. That was the option I mentioned on my first post.
Pokémon R/S/E count just the time passed, not the exact date like other GBA games with clocks, besides it does a clock reset at each new game file. In these games, you can't see the date, so it doesn't matter a lot. However, that can be a pain if you play multiple games with clocks and that's the real issue, not berry glitch.
Basically, in Pokémon R/S, the days are counted as numbers instead of a date and when the count reachs 366 days it will only add one more day to the counter after 365 days, so the events that depend on the day number will not function properly.
If you need more information, read this:
https://bulbapedia.bulbagarden.net/wiki/Berry_glitch