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, 4 August 2026: day of Mars
- Sunrise
- 04:49
- Sunset
- 18:41
- Next sunrise
- 04:50
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:49 – 05:58
- 2☉︎ Sun05:58 – 07:08
- 3♀︎ Venus07:08 – 08:17
- 4☿︎ Mercury08:17 – 09:26
- 5☽︎ Moon09:26 – 10:36
- 6♄︎ Saturn10:36 – 11:45
- 7♃︎ Jupiter11:45 – 12:54
- 8♂︎ Mars12:54 – 14:04
- 9☉︎ Sun14:04 – 15:13
- 10♀︎ Venus15:13 – 16:22
- 11☿︎ Mercury16:22 – 17:31
- 12☽︎ Moon17:31 – 18:41
Night
- 1♄︎ Saturn18:41 – 19:31
- 2♃︎ Jupiter19:31 – 20:22
- 3♂︎ Mars20:22 – 21:13
- 4☉︎ Sun21:13 – 22:04
- 5♀︎ Venus22:04 – 22:55
- 6☿︎ Mercury22:55 – 23:45
- 7☽︎ Moon23:45 – 00:36
- 8♄︎ Saturn00:36 – 01:27
- 9♃︎ Jupiter01:27 – 02:18
- 10♂︎ Mars02:18 – 03:08
- 11☉︎ Sun03:08 – 03:59
- 12♀︎ Venus03:59 – 04:50
Questions
How are the planetary hours calculated in Chiba?
On Tuesday, 4 August 2026, the Sun rises at 04:49 and sets at 18:41: the day lasts 13h 52m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 04:50, lasts 10h 09m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mars, from 04:49 to 05:58: 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.