Happy New Year!
And how do we know this? Well, we stayed up late last night and saw the ball drop on Times Square in New York City at midnight, though it was time-delayed by three hours for TV audiences here on the West Coast. Earlier in the day, we saw the Associated Press photos of New Year’s fireworks at the Sydney Opera House. And our sports department reports that at 2 p.m. this afternoon, the Rose Bowl game will be played in Pasadena, Calif. Yes, it is Jan. 1.
Calendars, of course, are a human invention, spawned by our desire to keep track of the sun and the moon. Many predominantly Islamic nations still use the Hijri calendar, which is based on the phases of the moon. Like most of the world, the United States uses the Gregorian Calendar, proclaimed by Pope Gregory XIII in 1582. According to Encyclopaedia Brittanica Online, the Gregorian Calendar is a modified version of the older Julian Calendar, which provided for a year of 365 days, with a leap year every fourth year.
That was almost accurate. The solar year is more precisely 365 days, 5 hours, 48 minutes and 45.25 seconds. To adjust, leap years are proclaimed every fourth year, except that no century year is a leap year unless it can be divided by 400. If you’ll remember, 2000 was a leap year, because it can be evenly divided by 400, but 2100 won’t be. Perhaps our offspring will refer to it as the “Y2.1K Problem.”
Not that it matters to any of us, but a further proposed revision to the Gregorian Calendar will designate years evenly divisible by 4,000 as non-leap years. That will keep our calendar accurate to within one day for 20,000 years. (By that time, we will have lost 40 pounds, paid off our credit cards and saved enough money to retire comfortably.)