After positing that the Chilean earthquake shortened one of our Earth days (not to be confused with Earth Day) 1.26 microseconds, one has to consider that other earthquakes probably even out the effects. There was an earthquake in Haiti, then a small earthquake off the coast of Japan; an earthquake in Chile, then another in Taiwan. Forget trying to do the math on whether we've split the rotational difference between all of those earthquakes, though, because it's the end of the world anyway.
Update: Richard Lawson over at Gawker was apparently thinking the same thing and offers this link to expert seismologists saying it's just a coincidence. That's exactly what they always say in apocalyptic movies after the government finds out we're all inextricably fucked to our gills.
Chile's Michael Jackson-level earthquake (compared to Haiti's Farah Fawcett fault) has been calculated by a NASA scientist to have shortened one of your Earth days by 1.26 microseconds. Yeah, because shorter days are just what we need!* This is in addition to previous earthquakes, I suppose in the entire history of the planet, meaning we probably had days that were something like 24.5 hours long at one point. Why wouldn't they just make 25 the same as 24? Anyway, the 2004 earthquake in Sumatra—a sexy 9.1 on the Richter scale (so named for the man who invented the scale, Andy Richter)—shortened the day by 6.8 microseconds. So when they say the older you get the faster time just flies by, they're not just whistling "Dixie."
NASA has sent an advisory to all "thugs" to adjust their brims to compensate for the slight shift in the Earth's tilt, as well as a memo to our source on the intricacies of the its/it's paradigm.