You can't. It evolves by the time of day. Since there isn't a clock, eevee won't evolve into espeon OR umbreon.
so far, you cannot evolve eevee either to umbreon or espeon on FireRed because on FireRed and LeafGreen, there is no clock system. You must trade eevee to Emerald for evolving to Espeon or Umbreon
Evolve it from eevee
Ive hear my friends say that in Pokemon yellow you can evolve eevee in a espeon with a moon stone
give it a thunderstone
You will get an eevee egg. That you can evolve into an eevee or the other eevee evolutions.
so far, you cannot evolve eevee either to umbreon or espeon on FireRed because on FireRed and LeafGreen, there is no clock system. You must trade eevee to Emerald for evolving to Espeon or Umbreon
you can't. to get an espeon or umbreon, you need to evolve an eevee at certain time of day. leafgreen/firered don't have clocks. you have to trade the eevee to ruby/sapphire, max out friendship and level up in the pm for espeon, am for umbreon.
Evolve it from eevee
Ive hear my friends say that in Pokemon yellow you can evolve eevee in a espeon with a moon stone
you can by evolving eevee but not by capturing
give it a thunderstone
Max out Eevee's happiness during the day. ~KKMG1
You will get an eevee egg. That you can evolve into an eevee or the other eevee evolutions.
espeon evolves from Eevee fromHappiness during the day, or when around a Sun Shard
No evee evolves to flareon, espeon, umbreon, vaporeon, jolteon.
Evolve Eevee during the day
In Pokémon Flora Sky, to evolve Eevee into Espeon, you need to level up Eevee while it has high friendship with you. Make sure Eevee's friendship level is at least 220, and then level it up during the day. After meeting these conditions, Eevee will evolve into Espeon.