Question

How do you turn it nightime for my eevee in Pokemon crystal?

Answer 1

It turns nightime the second your game's clock hits 6:00 p.m.
After this the nightime continues until 3:59 a.m. In this duration your Eevee will evolve into an Umbreon.

Source - Personal Playthrough
Hope I helped!

Comments

Crystal used to be my favourite game.

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Thanks! Oh no... I NEED TO GET MY EEVEE'S FRIENDSHIP LEVEL UP BEFORE ITS DAY AGAIN!!!! I'm trying to get all the eeveeloutions in gen. 2, including eevee. I only have Espeon right now... -and eevee... i used all my other stones..-

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By the way, where is the clock in the game?

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it's in the pokegear's radio (atleast it was there the last time i saw it)