The tax year begins on this strange day for historical reasons. In the olden days, the new year began on March 25th, being the feast of the Annunciation. However, the calendar in use was not accurat; when they changed from the Julian to the Gregorian calender, they corrected for the inaccuracy simply by dropping the days that the calendar was out of sync by. But because the accountants didn’t want a year with fewer days, the tax year date was changed by adding the right number of days. Actually, since lots of people are paid or pay bills on the first of the month, or somewhere at the end of the month, it can be convenient to change the tax year at a day that is not one of those dates.
Time to: Check bank accounts, file tax return (unless you’re waiting for an important document, of course).