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 Monday, 18 May 2026: day of the Moon
- Sunrise
- 04:32
- Sunset
- 18:39
- Next sunrise
- 04:32
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1☽︎ Moon04:32 – 05:43
- 2♄︎ Saturn05:43 – 06:53
- 3♃︎ Jupiter06:53 – 08:04
- 4♂︎ Mars08:04 – 09:15
- 5☉︎ Sun09:15 – 10:25
- 6♀︎ Venus10:25 – 11:36
- 7☿︎ Mercury11:36 – 12:46
- 8☽︎ Moon12:46 – 13:57
- 9♄︎ Saturn13:57 – 15:07
- 10♃︎ Jupiter15:07 – 16:18
- 11♂︎ Mars16:18 – 17:28
- 12☉︎ Sun17:28 – 18:39
Night
- 1♀︎ Venus18:39 – 19:28
- 2☿︎ Mercury19:28 – 20:18
- 3☽︎ Moon20:18 – 21:07
- 4♄︎ Saturn21:07 – 21:57
- 5♃︎ Jupiter21:57 – 22:46
- 6♂︎ Mars22:46 – 23:35
- 7☉︎ Sun23:35 – 00:25
- 8♀︎ Venus00:25 – 01:14
- 9☿︎ Mercury01:14 – 02:03
- 10☽︎ Moon02:03 – 02:53
- 11♄︎ Saturn02:53 – 03:42
- 12♃︎ Jupiter03:42 – 04:32
Questions
How are the planetary hours calculated in Chiba?
On Monday, 18 May 2026, the Sun rises at 04:32 and sets at 18:39: the day lasts 14h 07m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:32, lasts 9h 53m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Moon, from 04:32 to 05:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.