About the Rahu Kaal finder
Rahu Kaal is a ~90-minute window each day considered inauspicious in Vedic astrology. It is calculated by splitting the time between sunrise and sunset into eight equal parts and assigning Rahu\'s portion to a fixed part-number per weekday. Traditionally, new ventures, journeys, purchases, and important meetings are avoided during this window.
What this tool returns
For any selected date and city, the tool reports three inauspicious windows:
- Rahu Kaal — avoid starting new ventures.
- Yamaganda Kaal — avoid travel and major decisions.
- Gulika Kaal — avoid auspicious / religious work.
All three are derived from the same eight-part division of the daylight hours, but each lands on a different segment per weekday. The tool computes them server-side from the day\'s actual sunrise and sunset for the selected city.
How Rahu Kaal moves through the week
The Rahu Kaal segment by weekday (using the 8-part division, counting from sunrise) is roughly: Mon — 2nd, Tue — 7th, Wed — 5th, Thu — 6th, Fri — 4th, Sat — 3rd, Sun — 8th. The tool does this math for you using the day\'s real solar timings, so the times shift naturally with the season.
Why city matters
Sunrise in Mumbai is about 50 minutes after sunrise in Kolkata, and sunset is offset too. Since all three inauspicious windows are anchored to local solar time, the clock time of each window differs by city. Always pick the city closest to where the activity will happen.
Worked example
On a Saturday in Kolkata with sunrise at 4:53 AM and sunset at 6:13 PM, the day lasts about 800 minutes; one-eighth is roughly 100 minutes. Saturday\'s Rahu Kaal is the 3rd segment from sunrise — about 8:13 AM to 9:53 AM. Yamaganda and Gulika are reported the same way.