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, 16 May 2026: day of Saturn
- Sunrise
- 04:34
- Sunset
- 18:37
- Next sunrise
- 04:33
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn04:34 – 05:44
- 2♃︎ Jupiter05:44 – 06:54
- 3♂︎ Mars06:54 – 08:05
- 4☉︎ Sun08:05 – 09:15
- 5♀︎ Venus09:15 – 10:25
- 6☿︎ Mercury10:25 – 11:36
- 7☽︎ Moon11:36 – 12:46
- 8♄︎ Saturn12:46 – 13:56
- 9♃︎ Jupiter13:56 – 15:07
- 10♂︎ Mars15:07 – 16:17
- 11☉︎ Sun16:17 – 17:27
- 12♀︎ Venus17:27 – 18:37
Night
- 1☿︎ Mercury18:37 – 19:27
- 2☽︎ Moon19:27 – 20:17
- 3♄︎ Saturn20:17 – 21:06
- 4♃︎ Jupiter21:06 – 21:56
- 5♂︎ Mars21:56 – 22:46
- 6☉︎ Sun22:46 – 23:35
- 7♀︎ Venus23:35 – 00:25
- 8☿︎ Mercury00:25 – 01:15
- 9☽︎ Moon01:15 – 02:04
- 10♄︎ Saturn02:04 – 02:54
- 11♃︎ Jupiter02:54 – 03:43
- 12♂︎ Mars03:43 – 04:33
Questions
How are the planetary hours calculated in Chiba?
On Saturday, 16 May 2026, the Sun rises at 04:34 and sets at 18:37: the day lasts 14h 04m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:33, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Saturn, from 04:34 to 05:44: 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.