Abhijit Muhurta (11:48 AM–12:36 PM IST for central India) is the 8th muhurta of the day, when the Sun is at its most powerful position. It is ruled by Abhijit Nakshatra (Vega), considered the king of nakshatras. Lord Krishna was born during Abhijit Muhurta. It overrides most other inauspicious conditions — except Rahu Kaal. Not observed on Wednesdays (Mercury/Wednesday conflicts with its power).
Brahma Muhurta (4:24–5:12 AM IST, 1h 36m before sunrise) is called the "Creator's Hour." The atmosphere is said to be charged with prana (life force) and the mind is clearest before external activity begins. Ayurveda recommends waking at this time — the Vata period — for optimal health, longevity, and mental clarity. Yoga, meditation, and study done at this time are said to yield results 10x faster.
Rahu Kaal (90 min daily) is specifically avoided for starting new activities — new business, marriage ceremonies, travel, signing contracts, property purchase. Routine ongoing work, completing existing tasks, eating, and most daily activities are fine during Rahu Kaal. The restriction is on initiation of new ventures, not continuation of existing ones.
Both are inauspicious periods. Rahu Kaal is governed by Rahu (north lunar node) and is considered more severe. Gulika Kaal (also called Maandi) is governed by Gulika, a shadow planet considered the son of Saturn (Shani). Most traditional practitioners observe both, but if only one must be chosen, Rahu Kaal is the more critical one to avoid.
Yes. Muhurta times are traditionally calculated from local sunrise, which varies by longitude. Assam (easternmost): sunrise ~5:00 AM. Gujarat (westernmost): ~7:00 AM. Times shown on this page are for central India (approximately Madhya Pradesh/Uttar Pradesh). For city-precise muhurta, use Drik Panchang or a local pandit's calculation.