| Duruthu Full Moon Poya Day | Public Holiday | |
| Thai Pongal | Public Holiday | |
| National Day | Public Holiday | |
| Navam Full Moon Poya Day | Public Holiday | |
| Valentine's Day | Observance | |
| Mahasivarathri Day | Public Holiday | |
| Madin Full Moon Poya Day | Public Holiday | |
| Holi | Hindu Holiday | |
| March Equinox | Season | |
| Bak Full Moon Poya Day | Public Holiday | |
| Sinhala and Tamil New Year's Eve | Public Holiday | |
| Sinhala and Tamil New Year's Day | Public Holiday | |
| Good Friday | Public Holiday | |
| Easter | Observance | |
| Labor Day | Public Holiday | |
| Vesak Full Moon Poya Day | Public Holiday | |
| Day after Vesak Full Moon Poya Day | Public Holiday | |
| Mother's Day | Observance | |
| Poson Full Moon Poya Day | Public Holiday | |
| Father's Day | Observance | |
| June Solstice | Season | |
| Eid al-Fitr (End of Ramadan) | Public Holiday | |
| Adhi Esala Full Moon Poya Day | Public Holiday | |
| Raksha Bandhan | Hindu Holiday | |
| Nikini Full Moon Poya Day | Public Holiday | |
| Janmashtami | Hindu Holiday | |
| Ganesh Chaturthi | Hindu Holiday | |
| Eid al-Adha | Public Holiday | |
| Binara Full Moon Poya Day | Public Holiday | |
| Navaratri | Hindu Holiday | |
| September Equinox | Season | |
| Dussehra | Hindu Holiday | |
| Vap Full Moon Poya Day | Public Holiday | |
| Deepavali | Public Holiday | |
| Il Full Moon Poya Day | Public Holiday | |
| Mawlid / Prophet's Birthday | Public Holiday | |
| Unduvap Full Moon Poya Day | Public Holiday | |
| December Solstice | Season | |
| Christmas Eve | Observance | |
| Christmas Day | Public Holiday | |