Panchak is the period when the Moon transits the last five nakshatras - through the signs Aquarius and Pisces. It recurs roughly every 27 days and lasts about 5 days. Certain activities like buying fuel/wood, building a roof, travelling south or funeral rites are traditionally avoided during Panchak.
The five types are named by the weekday: Roga (Sunday - illness), Raja (Monday - actually auspicious), Agni (Tuesday - fire risk), Chor (Friday - theft) and Mrityu (Saturday - danger). All dates here are computed from the Moon's exact sidereal position using the Swiss Ephemeris.
Plan with the Full Panchang
Check daily panchang, muhurat and auspicious timings.