Hacking Realtime clock feature necessary?

[Quark^2]

I'm gonna grab myself a GBA flash cart soon (once I decide which) for some old classics (on my GBA or to-buy SP).
It'll most likely be an EZ-Flash IV, however I am unsure how useful the realtime clock feature is.

Which games use it and require it?
I assume the pokemon games, but can I also do without? Or will catching certain pokemon be impossible without it?

 

[Alphypo07]

the pokemon games use rtc. also, i think i read somewhere that Boktai and some of the Megaman Battle Network games use it too.

and for your other questions, i have no clue.

 

[Critical_Impact]

I think you can get a fake clock, i.e. time progress's as you play the game but once you shut the game off time will stay at what the time was when you saved.

I think there is a way you can reset the time so you can still catch night pokemon as well if you dont want to wait around for night to come.

 

[Quark^2]

Is there a universal patcher for stuff like that?
GBATA does it for 2 Pokemon games, but nothing more.

 

[Alphypo07]

i came across this post from an old topic after doing a search.

"Not all of the GBA Pokemon games use a clock. Ruby, Sapphire and Emerald do, Fire Red and Leaf Green do not. I don't know about the others. There are patches for Ruby and Sapphire to enable time based events on flashcarts that don't have clocks. There is no patch for Emerald."

 

[DanTheManMS]

Since the RTC was added to the cartridge itself, RTC patching tends to be specific for each game, so no there isn't a universal RTC patcher.