Answer 1

In Pokémon FireRed and LeafGreen, however, the time function is completely absent, allowing it to be more like the Generation I games. This also makes it impossible for Eevee to evolve into either Espeon or Umbreon in these games.

Source: Bulbapedia/ Time

Comments

But there's no daylight rotation. Does it still work?

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Check the edited answer.

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darn... looks like i have to get coliseum again.