Panchanga
Panchanga has five parts: tithi, vara, nakshatra, yoga and karana. Each has favourable and unfavourable forms.
Different events use different sets of favourable nakshatras and weekdays.
What to avoid
Rahu Kala, Yamagandaka and Gulika Kala are considered unfavourable windows. Brahma Muhurta and Abhijit are especially strong periods.
Tara Bala and Chandra Bala check the Moon against the natal nakshatra.
Practical calculation
Choose an event and a date range. The service analyses every moment and shows windows with scores and reasons.
Open the muhurta calculator to see the best windows for your event.