Days, Months and Seasons

A Brief History of Time Measurement

Time flies like an arrow
Fruit flies like a banana

longcase
My grandfather clock: An old timer

Ever wondered why there are seven days in a week?

Our calendar originates from a mixture of pagan and mythical beliefs, including:

It's convenient for followers of a religion to conform to society norms, even when there's no religious connection.

For example, our way of measuring time (see hours, minutes and seconds) are based on an early Babylonian system, and our modern calendar is based on pagan practices and astrology.

But whether we have religious leanings or not, we don't think of the calendar as a pagan thing; it's merely a means to measure time, using things called 'days' and 'months'.

Origins of our day names

the seven celestial bodies
The seven celestial bodies

The days of the week are based on Greek mythology, renamed over the years to match the equivalent gods of north European mythology. (Similar names are used in other European languages, such as French, German, Italian and Spanish.)

But first, let's go back to the Egyptian astronomers who identified seven celestial bodies: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, and the Moon. They believed these revolved in Heaven around a stationary Earth and twinkly stars.

Having determined these bodies were pretty mysterious and therefore important, they had little to do other than amuse themselves by sitting on the banks of the Nile, looking up at the sky to contemplate the concept of 'time'. 

They divided the daylight time into 12 hours; a Zodiacally convenient number which divides cleanly by 2, 3, 4 and 6. The night time was also divided by 12, but the length of day 'hours' and night 'hours' would differ according to the season.

And we're stuck with that "base 12" system today, even though it seems more natural to use the decimal (base 10) numeral system, which is easy to count using our fingers. But the ancient astronomers were more 'scientific' and used two numeral systems: duodecimal (base 12) and sexagesimal (base 60). 

They named each hour after a particular celestial body:

1st hour: Saturn
2nd hour: Jupiter
3rd hour: Mars
4th hour: Sun
5th hour: Venus
6th hour: Mercury
7th hour: Moon

The 8th hour would recycle to the Saturn hour, as would the 15th and 22nd. Following this pattern, the 23rd hour would be Jupiter, the 24th Mars, and the 1st hour of the next day would be the Sun.

From this method, the first hour of each day was named after:

1st day: Saturn
2nd day: Sun
3rd day: Moon
4th day: Mars
5th day: Mercury
6th day: Jupiter
7th day: Venus

Each day was consecrated to the celestial body of its first hour, which has resulted not only in us having seven days a week, but also the names of those days.

The first day of a week was Saturn's day (Saturday), but on their flight from the Egyptians, the Jews changed this and made Saturday their Sabbath, the last day of the week. Christian leaders later moved observance of the Sabbath from Saturday to Sunday as part of their theological and historical split from Judaism, whilst maintaining respect for the Hebrew Scriptures. 

Following the Jewish day numbering system, with the last day of the week being Saturday, the first day of the week became:

Although our days are named after gods, the names were not regularly capitalized until the 17th century. Relating that prosaicism will do you no favours during dinner conversation, unless your companions are drunk.

Origins of our month names

No word in the English language rhymes with orange, silver or purple. Another non-rhyming word is 'month'.

The word 'month' stems from 'moon', and 'calendar' stems from calare (to call out), just as the ancient priests did when they announced a new moon. The month names we use were chosen to celebrate Roman deities and emperors. (Similar names are used in other European languages, such as French, German, Italian and Spanish.)

The last four months are just based on a mundane numbering system. The year used to begin in March, so September through to December were months 7 to 10. A numbering system is still used in many cultures today for the whole year. Modern Japanese, for example, has 1-gatsu, 2-gatsu, 3-gatsu ... 12-gatsu. Similarly in Chinese: 1-yuè, 2-yuè, 3-yuè ... 12-yuè.

(Curiously, when Pope Gregory XIII changed the calendar system in 1582 and established the Gregorian calendar with January as the first month of the year, he didn't bother to rename any of these months. December, for example, could have been changed to acknowledge Advent or Christmas with Advenber or Chrisber.)

Origins of our season names

It's about time for some one-liners...

The length of time between slipping on a banana peel and smacking the pavement:
bananosecond.

What do you call a tense clock?
All wound up.

Why did the boy sit on his watch?
He wanted to be on time.

Why did you throw the clock out the window?
I wanted to see time fly.

By 'pagan', we are taking the widest definition of anything that is not monotheistic

There are a few theories about why the Egyptians used 60 (sexagesimal) as the base for their counting system. Here are a couple of the more popular:

Most of the world now uses the decimal system, ten being the number of our fingers and thumbs. Very handy.

We doubt the Egyptians had 60 fingers and thumbs, but nevertheless, it is likely they used their digits for counting. Each finger (not the thumb) has three bones. By using the tip of the right thumb, you can count by pointing to the each of the three bones of each of the four fingers of the right hand, totalling 12. Having counted up to 12, raise a finger on the left hand, then start counting again to 12 on the right hand. After raising the thumb and all four fingers on the left hand, you've reached 60 (3 x 4 x 5).

Alternatively, they might have counted the average resting heart beat at 60 pulses per minute, and 60 of those, times 24, took exactly one day. What patience!

We think the finger-joint counting method is the most likely.

See A 60-second guide to 60 minutes

It's joke time!

Sherlock Holmes and Dr Watson go on a camping trip.

As they lay down for the night, Holmes says: "Watson, look up into the sky and tell me what you see".
Watson:
"I see millions and millions of stars."
Holmes:
"And Watson, as London's finest doctor, what does that tell you?"
Watson:
"Astronomically, it tells me that space is infinite, that there are millions of galaxies and potentially billions of planets.

Theologically, it tells me that God is great and that we are small and insignificant.

Meteorologically, it tells me that we will have a beautiful day tomorrow.

Holmes, as England's finest detective, what does it tell you?
"
Holmes:
"Somebody's stolen our tent!"

Deut. 5:12-15

1,339 QI Facts To Make Your Jaw Drop by John Lloyd, John Mitchinson & James Harkin (Faber & Faber £9.99)

See also Sun Cross.