B
Beryllos
Guest
Perhaps it is not so simple. Long ago — or was it Once Upon A Time? — I read an amusing essay about how complicated it is even to keep track of time in the chronological sense. For software developers, it is a nightmare.Not even such a simple thing as “time” can be agreed upon within the group of apologists.
The day is defined by the rotation of the earth. That rotational period is divided into 24 hours, and yet in some parts of the world the hours are numbered 1 through 12 with the suffix AM or PM, which changes not when the numbers begin their cycle at 1, but rather at 12. Why are hours divided into sixtieths, and minutes further into sixtieths?
Days are counted by sevens in accordance with Jewish Scripture (or did the 7-day week originate even further back?), and each day given a special name (in English, some named after false gods!).
Days are also counted in larger groups called months, supposedly marking the cycles of the moon, and yet the months in Western calendars do not keep time with cycles of the moon. The months are are not all the same length: 28 (or 29 in a leap year), 30, or 31 days. The months do not align consistently with the weeks. The months are named after false gods, Roman emperors, or ordinal numbers (Sept=7, Oct=8, Nov=9, Dec=10), except the numbers are misaligned with respect to the placement of the months in the year (Sept=9, Oct=10, Nov=11, Dec=12).
Neither weeks nor months align with years. Years are defined by the orbital period of the earth, which is not evenly divisible by days, so we patch up the calendar by “leaping.” That means we insert one extra day every 4 years, … but we omit it every 100 years, … unless the year is divisible by 400.
The years are numbered relative to the birth of Jesus, so years prior to his birth must be counted in reverse (e.g., 800 BC came before 400 BC, whereas 800 AD came after 400 AD).
We also mark centuries, and there is no little confusion about whether the 21st century began on January 1, 2000, or January 1, 2001.
People write the year sometimes with 4 digits, and sometimes with 2 digits. This led to the Y2K problem. For those of you too young to remember, it was feared that computers would mistake 00 for 1900 instead of 2000, which would mess up all sorts of calendar-based applications. Isn’t it ironic that, in connection with this problem, the phrase “Year 2000” was shortened to “Y2K”? I mean, that’s the sort of laziness that created the problem in the first place!
I could go on. How about time zones? How about Daylight Saving Time? International Date Line? Leap seconds? The Theory of Relativity?
But I don’t have the time.