Calendar 1921
0 public holidays, 0 joint leave days
Public Holiday Joint Leave Notable Day
- Tue, 8 March - International Women's Day
- Wed, 9 March - National Music Day
- Fri, 11 March - Supersemar Day
- Tue, 22 March - World Water Day
- Tue, 1 March - Hari Kehakiman Nasional
- Sun, 20 March - Hari Kebahagiaan Internasional
- Mon, 21 March - Hari Down Syndrome Sedunia
- Thu, 24 March - Hari Tuberkulosis Sedunia
- Sun, 1 May - International Labour Day
- Mon, 2 May - National Education Day
- Fri, 20 May - National Awakening Day
- Tue, 3 May - Hari Kebebasan Pers Sedunia
- Sun, 8 May - Hari Palang Merah Internasional
- Tue, 17 May - Hari Buku Nasional
- Sun, 29 May - Hari Lanjut Usia Nasional
- Tue, 31 May - Hari Tanpa Tembakau Sedunia
- Thu, 1 September - Policewomen's Day
- Thu, 8 September - International Literacy Day
- Wed, 21 September - International Day of Peace
- Sat, 24 September - National Farmers' Day
- Wed, 28 September - Railway Day
- Fri, 9 September - Hari Olahraga Nasional
- Sun, 11 September - Hari Radio Republik Indonesia
- Sat, 17 September - Hari Palang Merah Indonesia
- Tue, 27 September - Hari Pariwisata Sedunia
- Sat, 1 October - Pancasila Sanctity Day
- Sun, 2 October - National Batik Day
- Wed, 5 October - Indonesian Armed Forces Day
- Sun, 16 October - World Food Day
- Fri, 28 October - Youth Pledge Day
- Sun, 9 October - Hari Pos Sedunia
- Sat, 15 October - Hari Cuci Tangan Sedunia
- Mon, 24 October - Hari PBB / United Nations
- Sun, 30 October - Hari Menabung Sedunia
- Thu, 10 November - Heroes' Day
- Sat, 12 November - Hari Ayah Nasional
- Sat, 12 November - National Health Day
- Wed, 16 November - Hari Toleransi Internasional
- Sun, 20 November - Hari Anak Sedunia
- Mon, 21 November - Hari Pohon Sedunia
- Fri, 25 November - National Teachers' Day
- Tue, 29 November - Hari KORPRI
- Sat, 5 November - Hari Cinta Puspa & Satwa Nasional
- Mon, 14 November - Hari Diabetes Sedunia
- Tue, 22 November - Hari Perhubungan Darat
- Thu, 1 December - World AIDS Day
- Sat, 3 December - Hari Disabilitas Internasional
- Fri, 9 December - International Anti-Corruption Day
- Sat, 10 December - Human Rights Day
- Thu, 22 December - Mother's Day
- Sun, 25 December - Christmas Day
- Fri, 2 December - Hari Perlindungan Satwa
- Tue, 13 December - Hari Nusantara
- Mon, 19 December - Hari Bela Negara
Joint Leave 1921
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Notable Days 1921
- Sat, 1 January - New Year's Day
- Tue, 4 January - Hari Braille Sedunia
- Mon, 10 January - Tritura Day
- Sat, 15 January - Hari Dharma Samudra
- Tue, 25 January - National Nutrition Day
- Wed, 2 February - Hari Lahan Basah Sedunia
- Wed, 9 February - National Press Day
- Mon, 14 February - Valentine's Day
- Sun, 20 February - National Workers' Day
- Mon, 21 February - Hari Bahasa Ibu Internasional
- Tue, 1 March - Hari Kehakiman Nasional
- Tue, 8 March - International Women's Day
- Wed, 9 March - National Music Day
- Fri, 11 March - Supersemar Day
- Sun, 20 March - Hari Kebahagiaan Internasional
- Mon, 21 March - Hari Down Syndrome Sedunia
- Tue, 22 March - World Water Day
- Thu, 24 March - Hari Tuberkulosis Sedunia
- Sat, 2 April - Hari Peduli Autisme Sedunia
- Thu, 7 April - World Health Day
- Sat, 9 April - Hari TNI Angkatan Udara
- Tue, 19 April - Hari Pertahanan Sipil (Hansip)
- Thu, 21 April - Kartini Day
- Fri, 22 April - Earth Day
- Sat, 23 April - Hari Buku Sedunia
- Sun, 24 April - Hari Angkutan Nasional
- Sun, 1 May - International Labour Day
- Mon, 2 May - National Education Day
- Tue, 3 May - Hari Kebebasan Pers Sedunia
- Sun, 8 May - Hari Palang Merah Internasional
- Tue, 17 May - Hari Buku Nasional
- Fri, 20 May - National Awakening Day
- Sun, 29 May - Hari Lanjut Usia Nasional
- Tue, 31 May - Hari Tanpa Tembakau Sedunia
- Wed, 1 June - Pancasila Day
- Sun, 5 June - World Environment Day
- Wed, 8 June - Hari Laut Sedunia
- Tue, 21 June - Agricultural Day
- Sun, 26 June - Hari Anti Narkoba Internasional
- Wed, 29 June - Hari Keluarga Nasional
- Fri, 1 July - Police Day (Bhayangkara)
- Sat, 9 July - Hari Satpam
- Tue, 12 July - Hari Koperasi Indonesia
- Fri, 22 July - Attorney's Day
- Sat, 23 July - National Children's Day
- Fri, 29 July - Hari Harimau Sedunia
- Mon, 8 August - ASEAN Day
- Wed, 10 August - Hari Veteran Nasional
- Fri, 12 August - Hari Remaja Internasional
- Sun, 14 August - Scout Day
- Wed, 17 August - Indonesian Independence Day
- Thu, 18 August - Hari Konstitusi Republik Indonesia
- Fri, 19 August - World Humanitarian Day
- Thu, 1 September - Policewomen's Day
- Thu, 8 September - International Literacy Day
- Fri, 9 September - Hari Olahraga Nasional
- Sun, 11 September - Hari Radio Republik Indonesia
- Sat, 17 September - Hari Palang Merah Indonesia
- Wed, 21 September - International Day of Peace
- Sat, 24 September - National Farmers' Day
- Tue, 27 September - Hari Pariwisata Sedunia
- Wed, 28 September - Railway Day
- Sat, 1 October - Pancasila Sanctity Day
- Sun, 2 October - National Batik Day
- Wed, 5 October - Indonesian Armed Forces Day
- Sun, 9 October - Hari Pos Sedunia
- Sat, 15 October - Hari Cuci Tangan Sedunia
- Sun, 16 October - World Food Day
- Mon, 24 October - Hari PBB / United Nations
- Fri, 28 October - Youth Pledge Day
- Sun, 30 October - Hari Menabung Sedunia
- Sat, 5 November - Hari Cinta Puspa & Satwa Nasional
- Thu, 10 November - Heroes' Day
- Sat, 12 November - Hari Ayah Nasional
- Sat, 12 November - National Health Day
- Mon, 14 November - Hari Diabetes Sedunia
- Wed, 16 November - Hari Toleransi Internasional
- Sun, 20 November - Hari Anak Sedunia
- Mon, 21 November - Hari Pohon Sedunia
- Tue, 22 November - Hari Perhubungan Darat
- Fri, 25 November - National Teachers' Day
- Tue, 29 November - Hari KORPRI
- Thu, 1 December - World AIDS Day
- Fri, 2 December - Hari Perlindungan Satwa
- Sat, 3 December - Hari Disabilitas Internasional
- Fri, 9 December - International Anti-Corruption Day
- Sat, 10 December - Human Rights Day
- Tue, 13 December - Hari Nusantara
- Mon, 19 December - Hari Bela Negara
- Thu, 22 December - Mother's Day
- Sun, 25 December - Christmas Day