Re: Sidereal times and total confusion
Don't worry about the Sidereal Time unless you are calculating by hand. Let the computer worry about it.
What you DO have to worry about is whether your Time Zone and Daylight Saving Times are accounted for correctly.
Planetary Hour calculations are based on the day of the week and what time Sunrise and Sunset happen for you locally. They divide up the daylight hours into twelve equal portions, then the night hours into 12 equal portions. Unless you are on one of the Equinoxes the day/night hours will be longer or shorter based on the season. For example, during Summer, the day hours will be longer than the night hours, and vice-versa during the Winter.
You always start the first hour of each day with the Platary hour of the Planetary day. For example, the first (unequal) hour after dawn on a Saturday is the Saturn Hour. Then you take the each of the planets in reverse Chaldean order and assign each subsequent hour sequentially. Thus on Saturday, the order of the Hours would be Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon - then just keep repeating them until dawn the next day. The next day will pick up (magically!) where the last one left off.
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