Tuesday 01 Jan New Year 2013
Thursday 24 Jan Birth of the Prophet Muhammad SAW
Tuesday 12 Mar Hindu Saka New Year 1935
Friday 29 Mar Good Friday
Thursday 09 May Ascension Day of Jesus Christ
Thursday 06 Jun Isra' Mi'raj of the prophet Muhammad Saw
Monday 05 Aug Public Holiday (Commemoration of Ied ul-Fitr 1434 Hijriyah)
Tuesday 06 Aug Public Holiday (Commemoration of Ied ul-Fitr 1434 Hijriyah)
Wednesday 07 Aug Public Holiday (Commemoration of Ied ul-Fitr 1434 Hijriyah)
Thursday 08 Aug Ied ul-Fitr 1 Syawal 1434 Hijriyah
Friday 09 Aug Ied ul-Fitr 2 Syawal 1434 Hijriyah
Monday 14 Oct Public Holiday (Commemoration of Eid ul-Adha 1434 Hijriyah)
Tuesday 15 Oct Eid ul-Adha 1434 Hijriyah
Tuesday 05 Nov Islamic New Year 1435 Hijriyah
Wednesday 25 Dec Christmas Day
Thursday 26 Dec Public Holiday (Commemoration of Christmas Day)
Tuesday 31 Dec Trading Holidays
Source: http://www.idx.co.id/Home/NewsAndAnnouncement/TradingHoliday/tabid/132/language/en-US/Default.aspx