Day Date Month Holiday
Tuesday 28 Mar Hindu Saka New Year 1939
Friday 14 Apr Good Friday
Monday 24 Apr Isra Mikraj of the Prophet Muhammad SAW
Monday 01 May Labor Day
Thursday 11 May Vesak Day 2561
Thursday 25 May Ascension Day of Jesus Christ
Thursday 01 Jun Pancasila Day
Friday 23 Jun Commemoration of Eid ul-Fitr 1438 Hijriyah
Monday 26 Jun Eid ul-Fitr 1438 Hijriyah
Tuesday 27 Jun Commemoration of Eid ul-Fitr 1438 Hijriyah
Wednesday 28 Jun Commemoration of Eid ul-Fitr 1438 Hijriyah
Thursday 17 Aug Independence Day of Indonesia
Friday 01 Sep Eid ul-Adha 1438 Hijriyah
Thursday 21 Sep Islamic New Year 1439 H
Friday 01 Dec Birth of the Prophet Muhammad SAW
Monday 25 Dec Christmas Day
Tuesday 26 Dec Commemoration of Christmas Day
Source: http://www.idx.co.id/Portals/0/StaticData/NewsAndAnnouncement/TradingHoliday/2017Eng.pdf