Planetary hours
in Batna.
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 Wednesday, 17 December 2025: day of Mercury
- Sunrise
- 07:38
- Sunset
- 17:24
- Next sunrise
- 07:39
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Africa/Algiers).
Day
- 1☿︎ Mercury07:38 – 08:27
- 2☽︎ Moon08:27 – 09:16
- 3♄︎ Saturn09:16 – 10:05
- 4♃︎ Jupiter10:05 – 10:53
- 5♂︎ Mars10:53 – 11:42
- 6☉︎ Sun11:42 – 12:31
- 7♀︎ Venus12:31 – 13:20
- 8☿︎ Mercury13:20 – 14:09
- 9☽︎ Moon14:09 – 14:57
- 10♄︎ Saturn14:57 – 15:46
- 11♃︎ Jupiter15:46 – 16:35
- 12♂︎ Mars16:35 – 17:24
Night
- 1☉︎ Sun17:24 – 18:35
- 2♀︎ Venus18:35 – 19:46
- 3☿︎ Mercury19:46 – 20:58
- 4☽︎ Moon20:58 – 22:09
- 5♄︎ Saturn22:09 – 23:20
- 6♃︎ Jupiter23:20 – 00:31
- 7♂︎ Mars00:31 – 01:43
- 8☉︎ Sun01:43 – 02:54
- 9♀︎ Venus02:54 – 04:05
- 10☿︎ Mercury04:05 – 05:16
- 11☽︎ Moon05:16 – 06:28
- 12♄︎ Saturn06:28 – 07:39
Other cities · Algeria
Questions
How are the planetary hours calculated in Batna?
On Wednesday, 17 December 2025, the Sun rises at 07:38 and sets at 17:24: the day lasts 9h 46m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:39, lasts 14h 15m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 07:38 to 08:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.