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. Coimbatore (77.0°E) sunrise is 22 min later than IST meridian, Rahu Kaal is 28 min later than Chennai and 13 min later than Bangalore. CosmosPandit uses precision astronomy (Jean Meeus, Astronomical Algorithms) to calculate the exact sunrise at Coimbatore's coordinates (11.016800°N, 76.955800°E), giving you the correct Rahu Kaal every day.
Rahu Kaal is the roughly 90-minute window each day ruled by the shadow planet Rahu, traditionally avoided for starting anything new, travel, deals, purchases, or ceremonies. It is the eighth part of the daytime (sunrise to sunset), and which part it falls in is fixed by the weekday, so the clock time shifts daily and by city.
Coimbatore, Tamil Nadu's industrial capital at the foot of the Nilgiris, is home to the Dhyanalinga yogic temple, the iconic 34-metre Adiyogi Shiva statue at Isha Yoga Centre, and the ancient Marudamalai Murugan temple. Despite its industrial character, Coimbatore observes Rahu Kalam (Tamil Rahu Kaal) with typical Tamil rigour. Near the equator at 11°N, sunrise varies by only 30 minutes across the year, the most consistent Rahu Kaal in Tamil Nadu.
Rahu Kaal is not the time to launch anything new or consequential in Coimbatore, so hold off on inaugurating a business, signing contracts, or beginning important negotiations during this window. Avoid starting significant travel, particularly long-distance journeys, as Rahu's shadow can introduce unexpected disruptions along the way. Wedding ceremonies, property registrations, vehicle purchases, and loan applications are best scheduled well outside this period, when planetary energies are more supportive and outcomes more stable.
Work that is already underway flows just fine during Rahu Kaal, so carry on with ongoing projects, finish pending tasks, and clear routine chores without worry. This is actually a quietly powerful time for prayer, chanting, and meditation, and devotees who recite the Rahu mantra "Om Rahave Namah" during this period often find it especially effective for seeking Rahu's blessings and cooling his influence. Study, planning, brainstorming, and research are all well suited to this window, making it productive for students and professionals alike. Think of Rahu Kaal not as lost time but as a natural pause the cosmos offers for reflection and inner work.
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:
No. Ooty (76.70°E) is 0.26 degrees west of Coimbatore (76.96°E) and at much higher altitude (2268m). Altitude affects sunrise time due to the lower horizon, Ooty's effective sunrise is slightly earlier than Coimbatore's despite the longitude being close.
Rahu Kalam is Tamil for Rahu Kaal. In Coimbatore, it follows the standard Vedic day-of-week assignment: Mon=2nd, Tue=7th, Wed=5th, Thu=6th, Fri=4th, Sat=3rd, Sun=8th Muhurta slot from sunrise. CosmosPandit calculates from Coimbatore's actual sunrise coordinates.
Yes. CosmosPandit fully supports Tamil (தமிழ்), all timings and Panchang in Tamil.
Astronomically precise Rahu Kaal timings for 25 major Indian cities.