A launch wants speed and a company wants to last. The rule asks for both, and the way it does that says something useful about how muhurat rules are built.

The naming ceremony has the widest star list in this cluster and the one rule that decides something other than the date: which syllable the name begins with.

Starting an education is timed under a dual rising sign, and the reason is the cleanest piece of reasoning in this cluster: it is a thing meant to keep changing.

Rahu Kaal is an eighth of the daylight, so it stretches and shrinks with the season. And unlike its two companions, it cannot be derived from a planet.

Stack every restriction in a panchang and almost no time survives. Here is how the limbs are actually weighed against each other.

Every other rule in this cluster gives one answer. This one gives two opposite answers depending on which side of the transaction you are standing on.

Gochar counts houses from your natal Moon rather than your ascendant, which is why two people born the same day read the same sky differently. Here is the whole system, with every rate measured rather than quoted.

A tithi is 12 degrees of separation between Moon and Sun. Because that takes anywhere from 20 to 27 hours, some tithis never see a sunrise at all.

Panchang means five limbs. Four of them are functions of just two numbers, and the fifth is the weekday. Here is what each one measures.

Gulika is the one window of the three that does more than tell you what to avoid. It also becomes a point in the chart, which is unusual.

Vara is the only limb of the panchang that is not an angle. Its order was generated by the planetary hours, and the arithmetic still checks out.

Amrit, Shubh, Labh and Char are good. Kaal, Rog and Udveg are not. Those seven names are the seven planets, and the split is their own.