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 Tuesday, 8 July 2025: day of Mars
- Sunrise
- 04:55
- Sunset
- 19:23
- Next sunrise
- 04:56
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Asia/Tehran).
Day
- 1♂︎ Mars04:55 – 06:07
- 2☉︎ Sun06:07 – 07:20
- 3♀︎ Venus07:20 – 08:32
- 4☿︎ Mercury08:32 – 09:44
- 5☽︎ Moon09:44 – 10:57
- 6♄︎ Saturn10:57 – 12:09
- 7♃︎ Jupiter12:09 – 13:21
- 8♂︎ Mars13:21 – 14:33
- 9☉︎ Sun14:33 – 15:46
- 10♀︎ Venus15:46 – 16:58
- 11☿︎ Mercury16:58 – 18:10
- 12☽︎ Moon18:10 – 19:23
Night
- 1♄︎ Saturn19:23 – 20:10
- 2♃︎ Jupiter20:10 – 20:58
- 3♂︎ Mars20:58 – 21:46
- 4☉︎ Sun21:46 – 22:34
- 5♀︎ Venus22:34 – 23:21
- 6☿︎ Mercury23:21 – 00:09
- 7☽︎ Moon00:09 – 00:57
- 8♄︎ Saturn00:57 – 01:45
- 9♃︎ Jupiter01:45 – 02:32
- 10♂︎ Mars02:32 – 03:20
- 11☉︎ Sun03:20 – 04:08
- 12♀︎ Venus04:08 – 04:56
Questions
How are the planetary hours calculated in Tehran?
On Tuesday, 8 July 2025, the Sun rises at 04:55 and sets at 19:23: the day lasts 14h 27m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 04:56, lasts 9h 33m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mars, from 04:55 to 06:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.