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 Friday, 28 August 2026: day of Venus
- Sunrise
- 05:33
- Sunset
- 18:37
- Next sunrise
- 05:33
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Asia/Tehran).
Day
- 1♀︎ Venus05:33 – 06:38
- 2☿︎ Mercury06:38 – 07:43
- 3☽︎ Moon07:43 – 08:49
- 4♄︎ Saturn08:49 – 09:54
- 5♃︎ Jupiter09:54 – 10:59
- 6♂︎ Mars10:59 – 12:05
- 7☉︎ Sun12:05 – 13:10
- 8♀︎ Venus13:10 – 14:16
- 9☿︎ Mercury14:16 – 15:21
- 10☽︎ Moon15:21 – 16:26
- 11♄︎ Saturn16:26 – 17:32
- 12♃︎ Jupiter17:32 – 18:37
Night
- 1♂︎ Mars18:37 – 19:32
- 2☉︎ Sun19:32 – 20:26
- 3♀︎ Venus20:26 – 21:21
- 4☿︎ Mercury21:21 – 22:16
- 5☽︎ Moon22:16 – 23:10
- 6♄︎ Saturn23:10 – 00:05
- 7♃︎ Jupiter00:05 – 01:00
- 8♂︎ Mars01:00 – 01:55
- 9☉︎ Sun01:55 – 02:49
- 10♀︎ Venus02:49 – 03:44
- 11☿︎ Mercury03:44 – 04:39
- 12☽︎ Moon04:39 – 05:33
Questions
How are the planetary hours calculated in Tehran?
On Friday, 28 August 2026, the Sun rises at 05:33 and sets at 18:37: the day lasts 13h 04m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:33, lasts 10h 56m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Venus, from 05:33 to 06:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.