January is long, cold, and dark in Chicago. We've got no more holidays, we've got much more snow, and we hardly see the sun.
So January 28th always makes me a little happy, because it's (usually) the first day in almost four months that the sun sets after 5pm. (The last time was November 1st.) It marks the log-jam of dark and cold nights breaking up. Sunset will slide to 5:30 in only three weeks and, thanks to Daylight Saving Time, blast almost to 7pm two weeks after that.
Of course, it's still another week and a half until the sun rises before 7am...