halx, I don't think that is right.
I read in an article that even though the quake shifted the Earth very slightly, it did NOT change the length of a day at all because the Earth still spins at the same speed. So there is no need to adjust your clocks.
The way that it was described to me is that the Earth is like one of those top spinner things that looks like a cone that you would spin on a table. The Earth rotates like one of those, the point makes a little circle on the table per say. Now, the quake in Asia moved that just a little bit so the circle is just a tiny bit off now, but it's not a big deal because the amount was so miniscule. So yeah.... time wasn't changed at all. That string thing is incorrect.