Indonesia: Pancasila DayBy kpsadmin2018 / August 13, 2018 Calendar When: June 1, 2020 all-day 2020-06-01T00:00:00+08:00 2020-06-02T00:00:00+08:00 Where: Indonesia . Pancasila is the official philosophical foundation of the Indonesian state Information provided by www.officeholidays.com