Monthly Archives: March 2022

Calendar: 2. Universal Time Coordinated (UTC) and Astronomical Dates

Iwaya-Iwakage of Kanayama Megaliths

UTC

UTC stands for Universal Time Coordinated, or Coordinated Universal Time. It is the standard used for standard time zones around the globe. It is also the standard used for astronomical events.

“Coordinated Universal Time or UTC is a standard, not a time zone. In other words, it is the base point for all other time zones in the world. They [other time zones] are determined by their difference to UTC. UTC [itself] is represented as UTC +0.

“Coordinated Universal Time is a 24-hour time standard that is used to synchronize world clocks. In order to keep Coordinated Universal Time as accurate as possible, two other time standards are used: International Atomic Time or TAI, and Universal Time also known as Solar Time.” https://www.worldtimeserver.com/time-zones/utc/. See also https://www.timeanddate.com/time/aboututc.html.

Translate UTC to your time zone

This is explained at EarthSky here. You must convert UTC to your own…

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Calendar: 1. Observing the Sun in the Sky

Iwaya-Iwakage of Kanayama Megaliths

Figure 1. A sunwatcher looking at the path of sun in the sky over the course of a year. Art by Shiho Tokuda (by permission).

An Ancient Global Solar Calendar

The Kanayama Megaliths of Central Japan were built around 5000 years ago during the Jomon Period. They are still in full operation, as we have been reporting on this site, as a super-accurate solar calendar. The Kanayama Solar calendar is aglobal calendar.This series of posts will show this. We begin with some basic astronomical facts related to the passage of the sun in the sky, as seen from earth.

Observing the Sun in the Sky

Indigenous people around the world have been watching the sun in the sky to know the seasons. Even if they knew that the earth orbits the sun, nevertheless, in terms of human living it is as if the sun goes around the earth…

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