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 Saturday, 15 August 2026: day of Saturn
- Sunrise
- 04:59
- Sunset
- 18:31
- Next sunrise
- 05:00
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Asia/Tokyo).
Day
- 1♄︎ Saturn04:59 – 06:07
- 2♃︎ Jupiter06:07 – 07:14
- 3♂︎ Mars07:14 – 08:22
- 4☉︎ Sun08:22 – 09:30
- 5♀︎ Venus09:30 – 10:37
- 6☿︎ Mercury10:37 – 11:45
- 7☽︎ Moon11:45 – 12:53
- 8♄︎ Saturn12:53 – 14:01
- 9♃︎ Jupiter14:01 – 15:08
- 10♂︎ Mars15:08 – 16:16
- 11☉︎ Sun16:16 – 17:24
- 12♀︎ Venus17:24 – 18:31
Night
- 1☿︎ Mercury18:31 – 19:24
- 2☽︎ Moon19:24 – 20:16
- 3♄︎ Saturn20:16 – 21:08
- 4♃︎ Jupiter21:08 – 22:01
- 5♂︎ Mars22:01 – 22:53
- 6☉︎ Sun22:53 – 23:46
- 7♀︎ Venus23:46 – 00:38
- 8☿︎ Mercury00:38 – 01:30
- 9☽︎ Moon01:30 – 02:23
- 10♄︎ Saturn02:23 – 03:15
- 11♃︎ Jupiter03:15 – 04:07
- 12♂︎ Mars04:07 – 05:00
Questions
How are the planetary hours calculated in Saitama?
On Saturday, 15 August 2026, the Sun rises at 04:59 and sets at 18:31: the day lasts 13h 32m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:00, lasts 10h 29m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Saturn, from 04:59 to 06:07: 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.