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 Friday, 22 May 2026: day of Venus
- Sunrise
- 04:31
- Sunset
- 18:45
- Next sunrise
- 04:30
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus04:31 – 05:42
- 2☿︎ Mercury05:42 – 06:53
- 3☽︎ Moon06:53 – 08:04
- 4♄︎ Saturn08:04 – 09:15
- 5♃︎ Jupiter09:15 – 10:27
- 6♂︎ Mars10:27 – 11:38
- 7☉︎ Sun11:38 – 12:49
- 8♀︎ Venus12:49 – 14:00
- 9☿︎ Mercury14:00 – 15:11
- 10☽︎ Moon15:11 – 16:22
- 11♄︎ Saturn16:22 – 17:34
- 12♃︎ Jupiter17:34 – 18:45
Night
- 1♂︎ Mars18:45 – 19:33
- 2☉︎ Sun19:33 – 20:22
- 3♀︎ Venus20:22 – 21:11
- 4☿︎ Mercury21:11 – 22:00
- 5☽︎ Moon22:00 – 22:49
- 6♄︎ Saturn22:49 – 23:37
- 7♃︎ Jupiter23:37 – 00:26
- 8♂︎ Mars00:26 – 01:15
- 9☉︎ Sun01:15 – 02:04
- 10♀︎ Venus02:04 – 02:53
- 11☿︎ Mercury02:53 – 03:41
- 12☽︎ Moon03:41 – 04:30
Questions
How are the planetary hours calculated in Saitama?
On Friday, 22 May 2026, the Sun rises at 04:31 and sets at 18:45: the day lasts 14h 14m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 04:30, lasts 9h 45m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Venus, from 04:31 to 05:42: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.