Planetary hours
in Biskra.
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 Sunday, 13 December 2026: day of the Sun
- Sunrise
- 07:35
- Sunset
- 17:26
- Next sunrise
- 07:36
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Africa/Algiers).
Day
- 1☉︎ Sun07:35 – 08:25
- 2♀︎ Venus08:25 – 09:14
- 3☿︎ Mercury09:14 – 10:03
- 4☽︎ Moon10:03 – 10:52
- 5♄︎ Saturn10:52 – 11:41
- 6♃︎ Jupiter11:41 – 12:31
- 7♂︎ Mars12:31 – 13:20
- 8☉︎ Sun13:20 – 14:09
- 9♀︎ Venus14:09 – 14:58
- 10☿︎ Mercury14:58 – 15:48
- 11☽︎ Moon15:48 – 16:37
- 12♄︎ Saturn16:37 – 17:26
Night
- 1♃︎ Jupiter17:26 – 18:37
- 2♂︎ Mars18:37 – 19:48
- 3☉︎ Sun19:48 – 20:59
- 4♀︎ Venus20:59 – 22:09
- 5☿︎ Mercury22:09 – 23:20
- 6☽︎ Moon23:20 – 00:31
- 7♄︎ Saturn00:31 – 01:42
- 8♃︎ Jupiter01:42 – 02:53
- 9♂︎ Mars02:53 – 04:04
- 10☉︎ Sun04:04 – 05:14
- 11♀︎ Venus05:14 – 06:25
- 12☿︎ Mercury06:25 – 07:36
Other cities · Algeria
Questions
How are the planetary hours calculated in Biskra?
On Sunday, 13 December 2026, the Sun rises at 07:35 and sets at 17:26: the day lasts 9h 51m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:36, lasts 14h 10m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
The Sun, from 07:35 to 08:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.