#120degreeswest #120degreesofenoch #120degreeseastfrom120degreeswest #Repost from @noquisi.wahya. What about telling the #time of the #Sun in regions farther north or south of the equator? The Sun's #path changes much more over the course of the year as one moves farther from the #equator. In #winter the Sun might be very low while in summer it might be much higher.
One simple way to tell time was to divide the #daylight time and the #night time into segments. Many #cultures did this, using different #numbers of segments. For example, the #Chinese divided one sun-cycle into #12 sections and the #Hindus into #60. Very early on, the #Egyptians divided the period between #sunrise and #sunset into 10 sections, and then added two more sections for the periods of #twilight at dawn and nightfall--making ￼12 sections of daylight time. They then divided the night into 12 sections also. This made a division of the sun-cycle into 24 sections, very much like the 24 hours that we divide the sun circle into. The #Babylonians used a similar system, and this is in fact where our modern 24-hour day has its origin. 1
However, there was an important difference between the hours we use and the "hours" of the Babylonians and the Egyptians. Their "hours" changed length, depending on what time of the year it was! They divided both daylight and nighttime into 12 sections each. When the daylight lasted a long time during the summer, their daylight "hours" could be as long as 75 minutes, while the nighttime "hours" were only 45 minutes long. In winter, however, when the Sun was not up as long, their "hours" might shrink to as short as about 55 minutes during the day, while at night they were about 70 minutes. Only on the #equinoxes were their "hours" 60 minutes, both day and night, just like our modern hours. You can #imagine what trouble using a system like this would cause in the modern world, as the length of the #hours changed slightly each day of the year!
The ancient #Greeks had borrowed the Babylonian/Egyptian system of counting hours, but in the late second century BCE, over 2100 years ago, a Greek #astronomer called #Hipparchos suggested that the "#equinoctal hours" of 60 minut