Source-backedFixed Annual
Constitution Day of the Republic of Indonesia
Indonesian government statistical-agency pages identify 18 August as Constitution Day of the Republic of Indonesia and describe it as an annual commemoration.
Country observance hub
Indonesia observances
3 source-backed records whose verified scope explicitly identifies Indonesia. This is an observance index, not a public-holiday calendar.
All verified country-scope records
Indonesia authority library
Source-backedFixed Annual
Hari Pramuka
Indonesian government coverage marks Hari Pramuka on 14 August and connects it with youth character, leadership and service
Source-backedFixed Annual
Independence Day / Proclamation anniversary
Indonesia’s State Secretariat announced the 2026 Independence Month agenda and 17 August 2026 ceremony for the 81st anniversary of the Proclamation of Independence.