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 Thursday, 15 October 2026: day of Jupiter
- Sunrise
- 05:45
- Sunset
- 17:04
- Next sunrise
- 05:46
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Asia/Tokyo).
Day
- 1♃︎ Jupiter05:45 – 06:42
- 2♂︎ Mars06:42 – 07:38
- 3☉︎ Sun07:38 – 08:35
- 4♀︎ Venus08:35 – 09:31
- 5☿︎ Mercury09:31 – 10:28
- 6☽︎ Moon10:28 – 11:25
- 7♄︎ Saturn11:25 – 12:21
- 8♃︎ Jupiter12:21 – 13:18
- 9♂︎ Mars13:18 – 14:14
- 10☉︎ Sun14:14 – 15:11
- 11♀︎ Venus15:11 – 16:08
- 12☿︎ Mercury16:08 – 17:04
Night
- 1☽︎ Moon17:04 – 18:08
- 2♄︎ Saturn18:08 – 19:11
- 3♃︎ Jupiter19:11 – 20:15
- 4♂︎ Mars20:15 – 21:18
- 5☉︎ Sun21:18 – 22:22
- 6♀︎ Venus22:22 – 23:25
- 7☿︎ Mercury23:25 – 00:29
- 8☽︎ Moon00:29 – 01:32
- 9♄︎ Saturn01:32 – 02:35
- 10♃︎ Jupiter02:35 – 03:39
- 11♂︎ Mars03:39 – 04:42
- 12☉︎ Sun04:42 – 05:46
Questions
How are the planetary hours calculated in Chiba?
On Thursday, 15 October 2026, the Sun rises at 05:45 and sets at 17:04: the day lasts 11h 19m, that is twelve day hours of 57 min. The night, until the next sunrise at 05:46, lasts 12h 42m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Jupiter, from 05:45 to 06:42: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.