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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 07:10
- Sunset
- 16:54
- Next sunrise
- 07:10
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Asia/Tehran).
Day
- 1☽︎ Moon07:10 – 07:58
- 2♄︎ Saturn07:58 – 08:47
- 3♃︎ Jupiter08:47 – 09:36
- 4♂︎ Mars09:36 – 10:24
- 5☉︎ Sun10:24 – 11:13
- 6♀︎ Venus11:13 – 12:02
- 7☿︎ Mercury12:02 – 12:51
- 8☽︎ Moon12:51 – 13:39
- 9♄︎ Saturn13:39 – 14:28
- 10♃︎ Jupiter14:28 – 15:17
- 11♂︎ Mars15:17 – 16:05
- 12☉︎ Sun16:05 – 16:54
Night
- 1♀︎ Venus16:54 – 18:05
- 2☿︎ Mercury18:05 – 19:17
- 3☽︎ Moon19:17 – 20:28
- 4♄︎ Saturn20:28 – 21:39
- 5♃︎ Jupiter21:39 – 22:51
- 6♂︎ Mars22:51 – 00:02
- 7☉︎ Sun00:02 – 01:13
- 8♀︎ Venus01:13 – 02:25
- 9☿︎ Mercury02:25 – 03:36
- 10☽︎ Moon03:36 – 04:47
- 11♄︎ Saturn04:47 – 05:59
- 12♃︎ Jupiter05:59 – 07:10
Questions
How are the planetary hours calculated in Tehran?
On Monday, 21 December 2026, the Sun rises at 07:10 and sets at 16:54: the day lasts 9h 44m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:10, lasts 14h 16m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
The Moon, from 07:10 to 07:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.