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 Wednesday, 16 December 2026: day of Mercury
- Sunrise
- 06:41
- Sunset
- 16:27
- Next sunrise
- 06:42
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tokyo).
Day
- 1☿︎ Mercury06:41 – 07:30
- 2☽︎ Moon07:30 – 08:19
- 3♄︎ Saturn08:19 – 09:08
- 4♃︎ Jupiter09:08 – 09:57
- 5♂︎ Mars09:57 – 10:46
- 6☉︎ Sun10:46 – 11:34
- 7♀︎ Venus11:34 – 12:23
- 8☿︎ Mercury12:23 – 13:12
- 9☽︎ Moon13:12 – 14:01
- 10♄︎ Saturn14:01 – 14:50
- 11♃︎ Jupiter14:50 – 15:39
- 12♂︎ Mars15:39 – 16:27
Night
- 1☉︎ Sun16:27 – 17:39
- 2♀︎ Venus17:39 – 18:50
- 3☿︎ Mercury18:50 – 20:01
- 4☽︎ Moon20:01 – 21:12
- 5♄︎ Saturn21:12 – 22:23
- 6♃︎ Jupiter22:23 – 23:35
- 7♂︎ Mars23:35 – 00:46
- 8☉︎ Sun00:46 – 01:57
- 9♀︎ Venus01:57 – 03:08
- 10☿︎ Mercury03:08 – 04:20
- 11☽︎ Moon04:20 – 05:31
- 12♄︎ Saturn05:31 – 06:42
Questions
How are the planetary hours calculated in Chiba?
On Wednesday, 16 December 2026, the Sun rises at 06:41 and sets at 16:27: the day lasts 9h 46m, that is twelve day hours of 49 min. The night, until the next sunrise at 06:42, lasts 14h 15m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 06:41 to 07:30: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.