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 Friday, 4 September 2026: day of Venus
- Sunrise
- 05:13
- Sunset
- 18:03
- Next sunrise
- 05:14
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus05:13 – 06:17
- 2☿︎ Mercury06:17 – 07:21
- 3☽︎ Moon07:21 – 08:25
- 4♄︎ Saturn08:25 – 09:30
- 5♃︎ Jupiter09:30 – 10:34
- 6♂︎ Mars10:34 – 11:38
- 7☉︎ Sun11:38 – 12:42
- 8♀︎ Venus12:42 – 13:46
- 9☿︎ Mercury13:46 – 14:50
- 10☽︎ Moon14:50 – 15:54
- 11♄︎ Saturn15:54 – 16:59
- 12♃︎ Jupiter16:59 – 18:03
Night
- 1♂︎ Mars18:03 – 18:59
- 2☉︎ Sun18:59 – 19:55
- 3♀︎ Venus19:55 – 20:50
- 4☿︎ Mercury20:50 – 21:46
- 5☽︎ Moon21:46 – 22:42
- 6♄︎ Saturn22:42 – 23:38
- 7♃︎ Jupiter23:38 – 00:34
- 8♂︎ Mars00:34 – 01:30
- 9☉︎ Sun01:30 – 02:26
- 10♀︎ Venus02:26 – 03:22
- 11☿︎ Mercury03:22 – 04:18
- 12☽︎ Moon04:18 – 05:14
Questions
How are the planetary hours calculated in Chiba?
On Friday, 4 September 2026, the Sun rises at 05:13 and sets at 18:03: the day lasts 12h 50m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:14, lasts 11h 11m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 05:13 to 06:17: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.