Yes. Sorry. I had the launch window wrong. It's 12 hours later. I'm pretty sure. (I'll be watching for a bit and I will holler if it turns out to be sooner.)

The sites that said the launch window would open at 4:20 JST apparently meant 4:20 PM JST.

Mitsubishi H-IIA Launch Services: Kizuna Special Site: Overview says:

So... Target launch window open:
2008 February 22, 2320 PST, Friday
2008 February 23, 0220 EST, Saturday
2008 February 23, 0720 UTC, Saturday
2008 February 23, 1620 JST, Saturday

About 12.5 hours to launch

Sorry.

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