I thought that I was just being slow in finding it (only saw it yesterday). The sign is covered in anti-Mako/pro-AVALANCHE slogans. Cloud isn't very impressed about the handwriting.
Okay, looks like we need a new question. It'll also be my last for today because I have to go now. Somebody should know the answer to this, it's not really hard (lying):

What time is it when the train pulls up at the Reactor 1 station?

Ha ha! Actually it's quite easy to find out if you're being observant. If you give up look below.

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Watch the beginning and look for the clock in the FMV that is in the courtyard, it flashes by just slowly enough to read. The time is ten past twelve.