Each religion or a certain area around the world has a unique way for defining and celebrating their new year such as the Chinese have their lunar new year or “Gong Xi Fat Choy”. Thai people has their Songkran, and Moslem people having their Muharam year, and any most of the countries around the globe use the Gregorian calendar for celebrate the New Year that start on 1st January.
The same case also for Balinese that use 2 kind of calendars in daily life. You need to take a note that Balinese has adopted the Gregorian calendar for government purposes and business in their daily life, however they also use lunar calendar for the procession of holy days, wedding, sacred dance, temple anniversaries, celebrations, building houses, death and cremation processes and other activities that define Balinese life, they have two calendar systems.
For the traditional calendar, their use Pawukon (means week, from word of Wuku) and Sasih which is means month. Wuku consists of 30 items that’s started from Sinta, and ended by Watugunung. The Pawukon, a 210-day ritual calendar brought over from Java in the 14th century, is a complex cycle of numerological conjunctions that provides the basic schedule for ritual activities on Bali. Sasih, a parallel system of Indian origin, is a twelve month lunar calendar that starts with the vernal equinox and is equally important in determining when to pay respect to the Gods.
You will be very wondering about traditional New Year in Bali. If Westerners start the New Year with a big bang, but in contrast with bali. The Balinese start their Nyepi with a very silence, Nyepi means the day of silence which falls on the day following the dark moon of the spring equinox.
The purpose of Nyepi is a day to make and keeping the balance of nature. Follow this link to know about Nyepi 2014