Indonesian tradition
Yourweton
In Java a birth day has two names at once: a day of the seven-day week and a day of the five-day market cycle. Together they make your weton.
02How it worksCalculated
The seven-day week is the one the whole world uses. The pasaran is a separate cycle of five days: Legi, Pahing, Pon, Wage and Kliwon. Because five and seven share no factor, the pair repeats only every 35 days. Both cycles run without a break, so your weton is found by counting days, which is exact for any date.
Each day and each pasaran carries a number, its neptu. Your neptu is the sum of the two. Javanese households have used neptu to choose dates and to talk about compatibility, and different primbon (almanac) books use it in different ways, so this page shows the number and does not give a verdict.
03The directionsAttributed
The five pasaran are tied to the four directions and the centre in Javanese cosmology: Legi to the east, Pahing to the south, Pon to the west, Wage to the north and Kliwon to the centre. Colours go with them. This is a symbolic scheme from the tradition, not a measurement.