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, 20 October 2025: day of the Moon
- Sunrise
- 06:15
- Sunset
- 17:22
- Next sunrise
- 06:16
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Asia/Tehran).
Day
- 1☽︎ Moon06:15 – 07:10
- 2♄︎ Saturn07:10 – 08:06
- 3♃︎ Jupiter08:06 – 09:02
- 4♂︎ Mars09:02 – 09:57
- 5☉︎ Sun09:57 – 10:53
- 6♀︎ Venus10:53 – 11:48
- 7☿︎ Mercury11:48 – 12:44
- 8☽︎ Moon12:44 – 13:40
- 9♄︎ Saturn13:40 – 14:35
- 10♃︎ Jupiter14:35 – 15:31
- 11♂︎ Mars15:31 – 16:26
- 12☉︎ Sun16:26 – 17:22
Night
- 1♀︎ Venus17:22 – 18:26
- 2☿︎ Mercury18:26 – 19:31
- 3☽︎ Moon19:31 – 20:35
- 4♄︎ Saturn20:35 – 21:40
- 5♃︎ Jupiter21:40 – 22:44
- 6♂︎ Mars22:44 – 23:49
- 7☉︎ Sun23:49 – 00:53
- 8♀︎ Venus00:53 – 01:58
- 9☿︎ Mercury01:58 – 03:02
- 10☽︎ Moon03:02 – 04:07
- 11♄︎ Saturn04:07 – 05:11
- 12♃︎ Jupiter05:11 – 06:16
Questions
How are the planetary hours calculated in Tehran?
On Monday, 20 October 2025, the Sun rises at 06:15 and sets at 17:22: the day lasts 11h 07m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:16, lasts 12h 54m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Moon, from 06:15 to 07:10: 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.