I’m unclear about this. Is the world ending later today (12.12.12) or on 12.21.12? I might handle my time differently if I have just 9 more hours as opposed to 9 more days.
On the other hand, if I wake up on the morning of 12.22.12 and the world is intact, I still want to have the mindset of “numbering my days” as the psalmist encourages. Somehow, I don’t think the One who suggests we number our days is paying much attention to the Mayan calendar.