Home Academic Calendar
| New Year's Day | |
| Kagyed Dance | |
| Loosong/Namsoong | |
| Nyempa Guzom | |
| Maghe Sankranti | |
| Republic Day | |
| Sonam Lochhar | |
| ARCIES 1st Meeting | |
| Losar | |
| ARCEIS Volleyball Boys AB Div. SJS Rhenock | |
| Inter-House Solo Song Competition (Primary) | |
| Bhumchu / Holi | |
| Kavi Sammelan (VI-VIII) | |
| Inter-House Basketball Competition Boys & Girls | |
| Inter-House Rangoli Competition (VI-XII) | |
| ARCEIS Volleyball Boys CD Div. SFS Jorethang | |
| Ramnawami (Chaite Dasain) | |
| Dr. B.R Ambedkar Jayanti | |
| Good Friday | |
| Holy Saturday | |
| Easter Sunday | |
| Easter Monday | |
| ARCEIS Basketball AB Div. (NPS Namchi) Boys & Girls | |
| First Unit Test (Tentative) | |
| ARCIES Basketball CD Div. Boys & Girls (NPS Namchi) | |
| Id Ul Fitr | |
| Inter-House Solo Song (VI-XII) | |
| Inter-House Spell Bee (I-VIII) | |
| State Day / Shyadar Pidar | |
| Inter-House Badminton Boys & Girls (VI-XII) | |
| Rhymes Recitation (LKG-UKG) | |
| Drawing & Painting Competition (I-XII) | |
| ARCIES 2nd Meeting SJS Martam | |
| Saga Dawa | |
| First Term Exam Starts (Tentative) | |
| Summer Vacation (Tentative) | |
| School Reopens after Summer Break | |
| Photography Competition | |
| Inter-House Solo Dance (Primary) | |
| Inter-House Solo Dance (Senior) | |
| Bhanu Jayanti | |
| ARCIES Football CD Div/Open (St. Xaviers Pakyong) | |
| ARCEIS AB Div. Football (St. Xaviers Pakyong) | |
| PTM | |
| Inter-House Quiz (Primary) | |
| Inter-House Quiz (Senior) | |
| Drukpa Tshe-zi | |
| Inter-House Elocution (Primary) | |
| ARCEIS Football Boys V & Below N/E SXS. Pakyong | |
| Guru Rimpoche's Thungkar Tsechu | |
| Tendong Lho Rum Faat | |
| Independence Day/ Inter-House Footbal Final | |
| Inter-House Debate (Primary/Senior) | |
| Janmasthami | |
| Second Unit Test Starts (Tentative) | |
| Teej (Haritalika) | |
| Inter-House TT (VI-VIII / IX - XII) | |
| ARCEIS Quiz HCS Tadong | |
| Indrajatra | |
| Pang-Lhabsol / Gospel Melody VI & Below Dance & Play SXS. Namthang | |
| ARCEIS Football Girls DBS Malbasey | |
| School Feast | |
| Third Unit Test (Tentative) | |
| Gandhi Jayanti | |
| Durga Puja (Dasain) | |
| Birthday of Late Nar Bahadur Bhandari,Former Chief Minister of Sikkim | |
| Gospel Melody VI & Below Dance EMS Rangpo | |
| Inter-House Chess | |
| Laxmi Puja (Deepawali) | |
| Inter-House PPT Presentation | |
| Children's Day | |
| Lhabab Duechen | |
| ARCEIS AGM (NPS Namchi) | |
| Annual Examination (Tentative) | |
| Sakewa / Teyongsi Srijunga Sawan Tongnam | |
| Barahimizong | |
| Results | |
| Chasok Tongnam | |
| Kagyed Dance | |
| Lossong/Namsoong | |
| Christmas | |
| Nyempa Guzom | |
| Tamu Lochar | |
| Losar | |
| Losar | |
| Losar | |
| Bhumchu | |
| Holi | |
| Ramnawami | |
| Good Friday | |
| Holy Saturday/Second Saturday | |
| Easter Monday | |
| Dr. B R Ambedkar Jayanti | |
| Id-Ul-Fitr | |
| Shyadar Pidar | |
| Saga Dawa | |
| Bhanu Jayanti | |
| Drukpa Tshe-zi | |
| Guru Rimpoche's Thrunkar Tshechu | |
| Tendong Lho Rum Faat | |
| Independence Day | |
| Nepali Bhasa Manyata Diwas | |
| Pang Lhabsol | |
| janmasthami | |
| Teej (Haritalika) | |
| Indrajatra | |
| Gandhi Jayanti | |
| Birthday of Lt. N B Bhandari, Former Chief Minister of Sikkim | |
| Durja Puja | |
| Lhabab Duechen | |
| Laxmi Puja | |
| Teyongsi Sirijunga Sawan Tongnam | |
| Kagyed Dance | |
| Losoong/Namsoong | |
| Losoong/Namsoong | |
| Chasok Tongnam | |
| Nyempa Guzom | |
| Christmas | |
| Puhgal Parim/Sakewa | |
| Tamu Lochar | |
| Barahimizong |