Chandrabalam compares the Moon’s current sidereal rāśi with a person’s natal Moon rāśi. It is a personal table because two people with different natal Moon signs receive different counts at the same moment. The Drik Panchang Chandrabalam table lists each birth rāśi against the Moon sign for a selected city and day; its columns change when the Moon enters the next sign. Our free calculator follows that navigation pattern while performing its own astronomical calculation.
Inclusive count around twelve signs
Start at the natal Moon sign and count it as position one. Move forward through the zodiac until reaching the transiting Moon sign. If the signs match, count one. If a Karka natal Moon meets a Simha transit Moon, count two. If the transit Moon is Mithuna, immediately before Karka in zodiac order, the count wraps around and reaches twelve. The calculator shows the number explicitly so it can be checked against the names.
In the referenced Drik table, counts 1, 3, 6, 7, 10 and 11 are labeled “Good.” Counts 2, 5 and 9 carry its “Puja Needed” label. Counts 4, 8 and 12 are labeled “Bad.” These are inherited ritual classification terms; they are not measured probabilities or guarantees. The tool repeats the vocabulary to make comparisons possible while avoiding personal predictions.
Why one date can have two answers
A civil date begins at midnight, whereas a panchanga day is commonly framed from local sunrise. Drik’s display notes that its day starts and ends with sunrise and shows a new column after an exact Moon-sign change. For example, its April 16, 2027 Thane page lists Karka at first and Simha after 08:18 local. A Karka natal Moon therefore moves from count one to count two at the sign ingress. A single “daily Chandrabalam” badge would hide that change.
Location, longitude and the clock
The Moon sign here comes from an apparent geocentric ecliptic longitude, so the user’s latitude does not change the sign ingress instant. Latitude and longitude determine local sunrise, and the fixed offset decides the local clock label. The calculator asks for all three so its window runs from the selected local sunrise to the following local sunrise. Near polar day or night, where a local sunrise may not exist, it reports no result rather than inventing a day boundary.
Which sidereal convention?
The browser uses Astronomy Engine 2.1.19 for the apparent geocentric Moon and this site’s approximate Lahiri ayanamsa to obtain the sidereal longitude. It searches for each 30° sign crossing to a one-second bracket and rounds display to the minute. A different ayanamsa, ephemeris, sunrise calculation or historical time-zone rule can move a boundary. It may also change a birth Moon sign close to a sign cusp. Use a natal sidereal Moon rāśi calculated under a compatible convention.
Frequently asked questions
Is my Sun sign the birth reference?
No. Chandrabalam counts from the Moon’s sidereal rāśi at birth. If you have a reliable birth date, time, and location, the Janma Rashi lookup can provide a working reference.
Does “Bad” predict a bad day?
No. It is a traditional table label for a relative sign position. It is not evidence about what will happen and should not replace ordinary judgment.
What if the Moon changes after midnight but before sunrise?
The new interval appears in the current sunrise-to-sunrise table with its next-day civil timestamp. The following day starts a new table at the next local sunrise.
Primary reference: Drik Panchang Chandrabalam Timings, April 16, 2027. For the nakshatra-based count, read the Tarabalam guide.