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 Sunday, 27 July 2025: day of the Sun
- Sunrise
- 05:08
- Sunset
- 19:12
- Next sunrise
- 05:09
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tehran).
Day
- 1☉︎ Sun05:08 – 06:18
- 2♀︎ Venus06:18 – 07:29
- 3☿︎ Mercury07:29 – 08:39
- 4☽︎ Moon08:39 – 09:49
- 5♄︎ Saturn09:49 – 11:00
- 6♃︎ Jupiter11:00 – 12:10
- 7♂︎ Mars12:10 – 13:21
- 8☉︎ Sun13:21 – 14:31
- 9♀︎ Venus14:31 – 15:41
- 10☿︎ Mercury15:41 – 16:52
- 11☽︎ Moon16:52 – 18:02
- 12♄︎ Saturn18:02 – 19:12
Night
- 1♃︎ Jupiter19:12 – 20:02
- 2♂︎ Mars20:02 – 20:52
- 3☉︎ Sun20:52 – 21:41
- 4♀︎ Venus21:41 – 22:31
- 5☿︎ Mercury22:31 – 23:21
- 6☽︎ Moon23:21 – 00:11
- 7♄︎ Saturn00:11 – 01:00
- 8♃︎ Jupiter01:00 – 01:50
- 9♂︎ Mars01:50 – 02:40
- 10☉︎ Sun02:40 – 03:29
- 11♀︎ Venus03:29 – 04:19
- 12☿︎ Mercury04:19 – 05:09
Questions
How are the planetary hours calculated in Tehran?
On Sunday, 27 July 2025, the Sun rises at 05:08 and sets at 19:12: the day lasts 14h 04m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:09, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
The Sun, from 05:08 to 06:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.