Planetary hours
in Saitama.
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, 7 October 2025: day of Mars
- Sunrise
- 05:41
- Sunset
- 17:16
- Next sunrise
- 05:41
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars05:41 – 06:39
- 2☉︎ Sun06:39 – 07:36
- 3♀︎ Venus07:36 – 08:34
- 4☿︎ Mercury08:34 – 09:32
- 5☽︎ Moon09:32 – 10:30
- 6♄︎ Saturn10:30 – 11:28
- 7♃︎ Jupiter11:28 – 12:26
- 8♂︎ Mars12:26 – 13:24
- 9☉︎ Sun13:24 – 14:22
- 10♀︎ Venus14:22 – 15:20
- 11☿︎ Mercury15:20 – 16:18
- 12☽︎ Moon16:18 – 17:16
Night
- 1♄︎ Saturn17:16 – 18:18
- 2♃︎ Jupiter18:18 – 19:21
- 3♂︎ Mars19:21 – 20:23
- 4☉︎ Sun20:23 – 21:25
- 5♀︎ Venus21:25 – 22:27
- 6☿︎ Mercury22:27 – 23:29
- 7☽︎ Moon23:29 – 00:31
- 8♄︎ Saturn00:31 – 01:33
- 9♃︎ Jupiter01:33 – 02:35
- 10♂︎ Mars02:35 – 03:37
- 11☉︎ Sun03:37 – 04:39
- 12♀︎ Venus04:39 – 05:41
Questions
How are the planetary hours calculated in Saitama?
On Tuesday, 7 October 2025, the Sun rises at 05:41 and sets at 17:16: the day lasts 11h 36m, that is twelve day hours of 58 min. The night, until the next sunrise at 05:41, lasts 12h 25m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Mars, from 05:41 to 06:39: 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.