"Just this once, Samoa is making Dec. 30 disappear."
I hope you enjoy your Friday, because they won't in Samoa. It didn't even happen, since they've canceled Friday Dec. 30th and just skipped straight to Dec 31st. This would make no sense without an understanding of the International Date Line and the regional economic networks of Oceania. Since Samoa's economy in tightly connected to New Zealand and Australia (on the 'other' side of the IDL) it's financially beneficial to have their work weeks line up to faciliate same day communications and business interactions. For more see: http://www.abc.net.au/news/2011-12-29/samoa-time-zone-jump/3751254 and http://www.nytimes.com/2011/12/30/world/asia/samoa-to-skip-friday-and-switch-time-zones.html?ref=sethmydans