Planetary hours
in Sayyān.
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 Thursday, 31 December 2026: day of Jupiter
- Sunrise
- 06:28
- Sunset
- 17:43
- Next sunrise
- 06:28
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Asia/Aden).
Day
- 1♃︎ Jupiter06:28 – 07:24
- 2♂︎ Mars07:24 – 08:20
- 3☉︎ Sun08:20 – 09:16
- 4♀︎ Venus09:16 – 10:13
- 5☿︎ Mercury10:13 – 11:09
- 6☽︎ Moon11:09 – 12:05
- 7♄︎ Saturn12:05 – 13:01
- 8♃︎ Jupiter13:01 – 13:58
- 9♂︎ Mars13:58 – 14:54
- 10☉︎ Sun14:54 – 15:50
- 11♀︎ Venus15:50 – 16:46
- 12☿︎ Mercury16:46 – 17:43
Night
- 1☽︎ Moon17:43 – 18:46
- 2♄︎ Saturn18:46 – 19:50
- 3♃︎ Jupiter19:50 – 20:54
- 4♂︎ Mars20:54 – 21:58
- 5☉︎ Sun21:58 – 23:02
- 6♀︎ Venus23:02 – 00:05
- 7☿︎ Mercury00:05 – 01:09
- 8☽︎ Moon01:09 – 02:13
- 9♄︎ Saturn02:13 – 03:17
- 10♃︎ Jupiter03:17 – 04:21
- 11♂︎ Mars04:21 – 05:24
- 12☉︎ Sun05:24 – 06:28
Questions
How are the planetary hours calculated in Sayyān?
On Thursday, 31 December 2026, the Sun rises at 06:28 and sets at 17:43: the day lasts 11h 15m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:28, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Jupiter, from 06:28 to 07:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.