Balinese Wedding Dates: The Pawukon and Dewasa Ayu.
Bali runs two calendars at once, and the one that governs ceremonies is unlike anything else on earth: ten weeks of different lengths running concurrently through a 210-day cycle.
The calendar
The Pawukon has no year count. Thirty wuku of seven days make a 210-day cycle, and ten separate week-systems, from a one-day week to a ten-day week, run simultaneously through it. Alongside it, the Saka lunisolar calendar governs the sasih and Nyepi.
The rules
- Uncal Balung
- The 42-day window around Galungan when pawiwahan is not held.
- Ingkel Wong
- Weeks in which ceremonies concerning human beings, weddings among them, are avoided. It falls on the wuku Sinta, Wariga, Langkir, Tambir and Bala.
- Sasih
- Katiga, Kapat, Kalima, Kapitu and Kadasa are considered good for marriage. Jyestha and Sadha are sasih sebel, and Kasa, Karo and Kaenem are widely avoided.
- Penanggal over pangelong
- The waxing half of the lunar month is preferred. Pangelong means "decreasing", and the reasoning is that happiness would shrink with the moon.
- Forbidden combinations
- Rangda Tiga, Carik Walangati and Tanpa Guru are named categories of dates said to bring widowhood, discord or disobedient children.
What can be worked out, and what cannot
A calendar can determine
- All ten wewaran cycles, and the wuku, for any date
- Uncal Balung and Ingkel Wong windows
- Sasih and the waxing or waning half
- Galungan, Kuningan, Nyepi and the Tumpek days
Only a pemangku or sulinggih can decide
The dewasa themselves. There are 191 named dewasa, and the defining combinations for most of them are not public — the most complete open-source Balinese calendar library lists them all and marks them unsupported, deferring to a printed manual. The rules also vary by village, clan and lontar lineage, which is why one Balinese calendar app makes its criteria user-configurable. There is no single correct answer to encode.
A common claim, corrected
A Balinese calendar app can pick your wedding date.
Balinese sources are consistent that apps are accurate for the basic cycles but cannot replace a sulinggih's specific interpretation. The expected workflow is to use a calendar to shortlist candidate dates and then take that shortlist to a priest, who will weigh it against the couple's own otonan. Treat any tool, including ours, as a way to narrow the field, not to settle it.
Nyepi is worth planning around regardless of tradition: for twenty-four hours the whole island stops, and the airport closes.