Planetary Hours Calculator — Today's Auspicious Hours
Discover which planet rules each hour of the day and night. Use planetary hours to choose the best time for important activities — from business meetings and studying to love and spiritual practice.
🕰️ Planetary Hours for Thursday, 13 August 2026
What Are Planetary Hours?
Planetary hours are an ancient system, dating back to Babylonian and Greek astrology, that divides each day and night into 12 planetary periods. Each hour is ruled by a planet in the Chaldean order (Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon). The planet ruling each hour imbues that time with specific energies, making it more or less favorable for different activities.
For example, the hour of Mercury is ideal for communication, negotiations, and studying, while the hour of Venus is perfect for romance, art, and social events. The hour of Mars favors energetic and physical tasks, while the hour of Saturn suits long-term planning and disciplined work. Choosing the right planetary hour for important activities is a key practice in electional astrology — the art of timing events for success.
Best Activities by Planet
☉ Sun Hour (Sunday)
Authority, leadership, vitality, confidence, recognition.
☽ Moon Hour (Monday)
Emotions, intuition, nurturing, home, public appeal.
♂ Mars Hour (Tuesday)
Energy, courage, action, competition, physical work.
☿ Mercury Hour (Wednesday)
Communication, commerce, learning, writing, contracts.
♃ Jupiter Hour (Thursday)
Expansion, wisdom, education, wealth, spirituality.
♀ Venus Hour (Friday)
Love, beauty, art, luxury, romance, harmony.
♄ Saturn Hour (Saturday)
Discipline, structure, patience, long-term goals, karma.