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 Tuesday, 1 September 2026: day of Mars
- Sunrise
- 05:11
- Sunset
- 18:07
- Next sunrise
- 05:12
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars05:11 – 06:15
- 2☉︎ Sun06:15 – 07:20
- 3♀︎ Venus07:20 – 08:25
- 4☿︎ Mercury08:25 – 09:29
- 5☽︎ Moon09:29 – 10:34
- 6♄︎ Saturn10:34 – 11:39
- 7♃︎ Jupiter11:39 – 12:44
- 8♂︎ Mars12:44 – 13:48
- 9☉︎ Sun13:48 – 14:53
- 10♀︎ Venus14:53 – 15:58
- 11☿︎ Mercury15:58 – 17:02
- 12☽︎ Moon17:02 – 18:07
Night
- 1♄︎ Saturn18:07 – 19:02
- 2♃︎ Jupiter19:02 – 19:58
- 3♂︎ Mars19:58 – 20:53
- 4☉︎ Sun20:53 – 21:48
- 5♀︎ Venus21:48 – 22:44
- 6☿︎ Mercury22:44 – 23:39
- 7☽︎ Moon23:39 – 00:35
- 8♄︎ Saturn00:35 – 01:30
- 9♃︎ Jupiter01:30 – 02:25
- 10♂︎ Mars02:25 – 03:21
- 11☉︎ Sun03:21 – 04:16
- 12♀︎ Venus04:16 – 05:12
Questions
How are the planetary hours calculated in Chiba?
On Tuesday, 1 September 2026, the Sun rises at 05:11 and sets at 18:07: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:12, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 05:11 to 06:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.