ರಾಹುಕಾಲ is the one you will actually encounter. It falls at a different time each weekday, lasts about ninety minutes, and during it people avoid starting anything new — a journey, a purchase, a signature. If a Kannada colleague says ಈಗ ರಾಹುಕಾಲ, they are asking you to wait, and accommodating it costs nothing.

ಮುಹೂರ್ತ works the other way. Weddings, housewarmings and business openings are timed to a calculated auspicious window, which is why a Karnataka wedding ceremony might begin at 5:40 in the morning.

ಹುಣ್ಣಿಮೆ and ಅಮಾವಾಸ್ಯೆ anchor the month, and several Karnataka festivals are named for them — ಕಾರ ಹುಣ್ಣಿಮೆ in North Karnataka is a full-moon cattle festival.

ನಕ್ಷತ್ರ determines a child’s name syllable at the ನಾಮಕರಣ ceremony, and many families celebrate a birthday by birth star rather than by calendar date — which means the date moves each year.

Karnataka calendars pack a great deal onto each date. Here is what the entries mean.

1. Large numeral: the Gregorian date.
2. Kannada line beneath: the tithi and paksha, for example ಶುಕ್ಲ ಪಕ್ಷ ಪಂಚಮಿ.
3. Second Kannada line: the nakshatra ruling that day.
4. A time range in red: usually ರಾಹುಕಾಲ, the window to avoid.
5. Festival names in colour: printed on the relevant tithi, not on fixed dates.

This is why Kannada festival dates change every year in Gregorian terms. The festival is fixed to a tithi, and the tithi moves. Ugadi is always the first day of ಚೈತ್ರ ಶುಕ್ಲ ಪಕ್ಷ, whatever the March or April date happens to be.

1. ಪಂಚಾಂಗ has two nasals — ‘pan-chaan-ga’.
2. ನಕ್ಷತ್ರ contains ಕ್ಷ then ತ್ರ. Say ‘nak-sha-tra’.
3. ಮುಹೂರ್ತ has a long oo and the cluster ರ್ತ.
4. ಅಮಾವಾಸ್ಯೆ has the cluster ಸ್ಯ at the end.
5. ಹುಣ್ಣಿಮೆ has a doubled retroflex ಣ that must be held.

• Treating Rahukala as superstition to be argued with. It affects real scheduling. Waiting twenty minutes is easier than debating it.
• Expecting festival dates to repeat annually. They follow tithis, which shift against the Gregorian calendar.
• Confusing ತಿಥಿ and ದಿನಾಂಕ. Tithi is the lunar day; ದಿನಾಂಕ is the calendar date.
• Assuming everyone follows it strictly. Observance varies enormously between families and between urban and rural Karnataka.
• Booking a wedding without checking muhurta. Families will not accept a date that has not been calculated.

Panchanga reading is a public event at Ugadi. On the new year morning, a priest or elder reads the year’s ಪಂಚಾಂಗ ಶ್ರವಣ aloud — predictions for rainfall, harvest, and the fortunes of each birth star. In villages this happens at the temple with the whole community present; on television, astrologers do the same for the state.

The system has adapted rather than faded. Panchanga apps are widely used, wedding halls advertise available muhurtas, and Karnataka newspapers print the daily Rahukala alongside the weather. Software engineers who describe themselves as entirely rational will still avoid signing a house registration during it.

For a visitor, the practical point is simply awareness. If a plan is postponed with no clear reason, or a shop opens twenty minutes late, or a colleague asks to move a meeting by half an hour, the panchanga is often the explanation — and it is not a conversation that benefits from scepticism.