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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 06:20
- Sunset
- 17:34
- Next sunrise
- 06:21
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Asia/Aden).
Day
- 1♂︎ Mars06:20 – 07:16
- 2☉︎ Sun07:16 – 08:13
- 3♀︎ Venus08:13 – 09:09
- 4☿︎ Mercury09:09 – 10:05
- 5☽︎ Moon10:05 – 11:01
- 6♄︎ Saturn11:01 – 11:57
- 7♃︎ Jupiter11:57 – 12:53
- 8♂︎ Mars12:53 – 13:50
- 9☉︎ Sun13:50 – 14:46
- 10♀︎ Venus14:46 – 15:42
- 11☿︎ Mercury15:42 – 16:38
- 12☽︎ Moon16:38 – 17:34
Night
- 1♄︎ Saturn17:34 – 18:38
- 2♃︎ Jupiter18:38 – 19:42
- 3♂︎ Mars19:42 – 20:46
- 4☉︎ Sun20:46 – 21:50
- 5♀︎ Venus21:50 – 22:54
- 6☿︎ Mercury22:54 – 23:58
- 7☽︎ Moon23:58 – 01:01
- 8♄︎ Saturn01:01 – 02:05
- 9♃︎ Jupiter02:05 – 03:09
- 10♂︎ Mars03:09 – 04:13
- 11☉︎ Sun04:13 – 05:17
- 12♀︎ Venus05:17 – 06:21
Questions
How are the planetary hours calculated in Sayyān?
On Tuesday, 15 December 2026, the Sun rises at 06:20 and sets at 17:34: the day lasts 11h 14m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:21, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mars, from 06:20 to 07:16: 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.