Starting the Time Adjustment Early

TheJester here.
So, in addition to being too excited to concentrate all day, I'm also too excited to sleep.
...which isn't a bad thing, since NZ is on the other side of the international dateline, and flipped +18 hours from Chicago time.
Lessee, GMT-5 to GMT +13=....confusion.
But no longer.
I've finally figured out how to convert from Chicago (Central Standard) to New Zealand Time (GMT +13 or so).
Ready?
1. subtract 6 hours from what time it is now in Chicago. (so it's 3pm in Chicago? that means it's 9am in NZ).
2. Make it be TOMORROW. Then you've got it. (25th today in Chicago? It's the 26th in NZ).
Strangely enough, this may mean that it's actually going to be easier to adjust to than going to Europe. We'll see, I guess, when we get there.
-TheJester