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 Saturday, 26 July 2025: day of Saturn
- Sunrise
- 04:42
- Sunset
- 18:48
- Next sunrise
- 04:43
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn04:42 – 05:53
- 2♃︎ Jupiter05:53 – 07:03
- 3♂︎ Mars07:03 – 08:14
- 4☉︎ Sun08:14 – 09:24
- 5♀︎ Venus09:24 – 10:35
- 6☿︎ Mercury10:35 – 11:45
- 7☽︎ Moon11:45 – 12:56
- 8♄︎ Saturn12:56 – 14:06
- 9♃︎ Jupiter14:06 – 15:17
- 10♂︎ Mars15:17 – 16:27
- 11☉︎ Sun16:27 – 17:38
- 12♀︎ Venus17:38 – 18:48
Night
- 1☿︎ Mercury18:48 – 19:38
- 2☽︎ Moon19:38 – 20:27
- 3♄︎ Saturn20:27 – 21:17
- 4♃︎ Jupiter21:17 – 22:07
- 5♂︎ Mars22:07 – 22:56
- 6☉︎ Sun22:56 – 23:46
- 7♀︎ Venus23:46 – 00:35
- 8☿︎ Mercury00:35 – 01:25
- 9☽︎ Moon01:25 – 02:14
- 10♄︎ Saturn02:14 – 03:04
- 11♃︎ Jupiter03:04 – 03:54
- 12♂︎ Mars03:54 – 04:43
Questions
How are the planetary hours calculated in Chiba?
On Saturday, 26 July 2025, the Sun rises at 04:42 and sets at 18:48: the day lasts 14h 06m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:43, lasts 9h 55m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Saturn, from 04:42 to 05:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.