Planetary hours
in Chiba.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Sunday, 9 August 2026: day of the Sun
- Sunrise
- 04:53
- Sunset
- 18:36
- Next sunrise
- 04:54
A day hour lasts 1h 09m; a night hour, 52 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun04:53 – 06:02
- 2♀︎ Venus06:02 – 07:10
- 3☿︎ Mercury07:10 – 08:19
- 4☽︎ Moon08:19 – 09:27
- 5♄︎ Saturn09:27 – 10:36
- 6♃︎ Jupiter10:36 – 11:44
- 7♂︎ Mars11:44 – 12:53
- 8☉︎ Sun12:53 – 14:01
- 9♀︎ Venus14:01 – 15:10
- 10☿︎ Mercury15:10 – 16:19
- 11☽︎ Moon16:19 – 17:27
- 12♄︎ Saturn17:27 – 18:36
Night
- 1♃︎ Jupiter18:36 – 19:27
- 2♂︎ Mars19:27 – 20:19
- 3☉︎ Sun20:19 – 21:10
- 4♀︎ Venus21:10 – 22:02
- 5☿︎ Mercury22:02 – 22:53
- 6☽︎ Moon22:53 – 23:45
- 7♄︎ Saturn23:45 – 00:36
- 8♃︎ Jupiter00:36 – 01:28
- 9♂︎ Mars01:28 – 02:19
- 10☉︎ Sun02:19 – 03:11
- 11♀︎ Venus03:11 – 04:02
- 12☿︎ Mercury04:02 – 04:54
Questions
How are the planetary hours calculated in Chiba?
On Sunday, 9 August 2026, the Sun rises at 04:53 and sets at 18:36: the day lasts 13h 43m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 04:54, lasts 10h 18m: twelve night hours of 52 min.
Which planet rules the first hour that day?
The Sun, from 04:53 to 06:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.