Most Vedic apps show the same Rahu Kaal for all of India — calculated from a generic IST formula. But Rahu Kaal is 1/8th of the actual daytime from today's sunrise at your location. Patna (85.1°E) is 7.9 degrees east of Delhi — sunrise is 32 min earlier than Delhi and only 13 min later than Kolkata. CosmosPandit uses precision astronomy (Jean Meeus, Astronomical Algorithms) to calculate the exact sunrise at Patna's coordinates (25.594100°N, 85.137600°E), giving you the correct Rahu Kaal every day.
Patna, ancient Pataliputra and Bihar's capital, is home to the Mahavir Mandir (Bihar's most visited temple), the Har Mandir Takht Patna Sahib (one of the five Sikh Takhts), and the famed Chhath Puja — Bihar's most important festival, timed precisely to sunrise and sunset. Patna at 85.1°E has a sunrise 32 minutes earlier than Delhi, making it one of India's early-sunrise mainland cities.
India uses a single timezone (IST, UTC+5:30) across 30° of longitude. But sunrise follows the sun, not the clock — every 1° of longitude – 4 minutes difference. Kolkata’s sunrise is 80 minutes earlier than Mumbai’s on the same IST day, so Rahu Kaal falls at genuinely different times in each city.
This Rahu Kaal page is just the start. The CosmosPandit app gives every Indian the full Vedic astrology toolkit — in their own language, with timings precise for their city:
Yes. CosmosPandit's Panchang screen shows today's precise sunrise and sunset for Patna every day. For Chhath, the Sandhya Arghya (evening) and Usha Arghya (morning) times are the sunset and sunrise on those specific days — displayed accurately in the app.
No. Gaya (84.99°E) is 0.15 degrees west of Patna (85.14°E) — sunrise is about 1 minute later in Gaya. For Bodh Gaya or Vishnupad temple rituals, use Gaya's coordinates in the CosmosPandit app.
Yes. CosmosPandit is fully available in Hindi — all timings, daily Rashifal, and Panchang in Hindi.
Astronomically precise Rahu Kaal timings for 25 major Indian cities.