Planetary hours
in Tehran.
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 Saturday, 12 December 2026: day of Saturn
- Sunrise
- 07:04
- Sunset
- 16:51
- Next sunrise
- 07:05
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tehran).
Day
- 1♄︎ Saturn07:04 – 07:53
- 2♃︎ Jupiter07:53 – 08:42
- 3♂︎ Mars08:42 – 09:31
- 4☉︎ Sun09:31 – 10:20
- 5♀︎ Venus10:20 – 11:08
- 6☿︎ Mercury11:08 – 11:57
- 7☽︎ Moon11:57 – 12:46
- 8♄︎ Saturn12:46 – 13:35
- 9♃︎ Jupiter13:35 – 14:24
- 10♂︎ Mars14:24 – 15:13
- 11☉︎ Sun15:13 – 16:02
- 12♀︎ Venus16:02 – 16:51
Night
- 1☿︎ Mercury16:51 – 18:02
- 2☽︎ Moon18:02 – 19:13
- 3♄︎ Saturn19:13 – 20:24
- 4♃︎ Jupiter20:24 – 21:35
- 5♂︎ Mars21:35 – 22:47
- 6☉︎ Sun22:47 – 23:58
- 7♀︎ Venus23:58 – 01:09
- 8☿︎ Mercury01:09 – 02:20
- 9☽︎ Moon02:20 – 03:31
- 10♄︎ Saturn03:31 – 04:42
- 11♃︎ Jupiter04:42 – 05:53
- 12♂︎ Mars05:53 – 07:05
Questions
How are the planetary hours calculated in Tehran?
On Saturday, 12 December 2026, the Sun rises at 07:04 and sets at 16:51: the day lasts 9h 47m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:05, lasts 14h 14m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Saturn, from 07:04 to 07:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.