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 Wednesday, 15 April 2026: day of Mercury
- Sunrise
- 05:31
- Sunset
- 18:37
- Next sunrise
- 05:30
A day hour lasts 1h 05m; a night hour, 54 min. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury05:31 – 06:37
- 2☽︎ Moon06:37 – 07:42
- 3♄︎ Saturn07:42 – 08:48
- 4♃︎ Jupiter08:48 – 09:53
- 5♂︎ Mars09:53 – 10:59
- 6☉︎ Sun10:59 – 12:04
- 7♀︎ Venus12:04 – 13:10
- 8☿︎ Mercury13:10 – 14:15
- 9☽︎ Moon14:15 – 15:21
- 10♄︎ Saturn15:21 – 16:26
- 11♃︎ Jupiter16:26 – 17:31
- 12♂︎ Mars17:31 – 18:37
Night
- 1☉︎ Sun18:37 – 19:31
- 2♀︎ Venus19:31 – 20:26
- 3☿︎ Mercury20:26 – 21:20
- 4☽︎ Moon21:20 – 22:15
- 5♄︎ Saturn22:15 – 23:09
- 6♃︎ Jupiter23:09 – 00:04
- 7♂︎ Mars00:04 – 00:58
- 8☉︎ Sun00:58 – 01:52
- 9♀︎ Venus01:52 – 02:47
- 10☿︎ Mercury02:47 – 03:41
- 11☽︎ Moon03:41 – 04:36
- 12♄︎ Saturn04:36 – 05:30
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 15 April 2026, the Sun rises at 05:31 and sets at 18:37: the day lasts 13h 05m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:30, lasts 10h 53m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mercury, from 05:31 to 06:37: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.