You would need to evolve Eeevee to Espeon with max Happiness during the day. Eevee can be given to you in Celadon Mansion. If you already evolved the given Eevee, you can breed for an Eevee or trade with a friend for an Eevee.
you can by evolving eevee but not by capturing
You need to level it up during the day when it loves you on any games except leafgreen or firered.
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.
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
Yes it is possible to get Espeon and Umbreon in Pokémon FireRed but you cannot physically evolve Eevee into either Espeon or Umbreon in Pokémon FireRed due to there being no time cycle in the game so you will need to evolve Eevee into Umbreon or Espeon in Pokémon Ruby, Sapphire or Emerald and then trade it over to FireRed.
Evee will never evolve to espeon or umbreon in firered because the game doesn't have internal time so to get an espeon or umbreon you must trade your evee to a game with a internal clock like ruby, sapphire and emerald. Also you can trade an espeon obtained from colosseum or even xd gale of darkness.
You can't. It evolves by the time of day. Since there isn't a clock, eevee won't evolve into espeon OR umbreon.
You can only trade it from the Johto region or the Hoen Region.
Charizard, suicune, flareon, absol, articuno, and espeon.
You cannot catch an Espeon in Pokémon diamond. To obtain an Espeon you must befriend and level up an Evee during the daytime.
No evee evolves to flareon, espeon, umbreon, vaporeon, jolteon.
Hippowdon temple.