| January | Holidays or Celebration | Country |
| 01 | New Year's Day holiday | Most of the world |
| 01 | Independence Day in Haiti | Sudan |
| 02 | Ancestry Day | Hati |
| 02 | St. Berchtold's Day | Switzerland |
| 03 | New Year's Holiday | Scotland |
| 03 | Revolution Day | Burkina Faso |
| 04 | Independence Day | Burma |
| 04 | Martyrs Day | Zaire |
| 06 | Children's Day | Uruguay |
| 06 | Three Kings' Day | Puerto Rico |
| 07 | Christmas | Ethiopa |
| 07 | Pioneer's Day | Liberia |
| 09 | Day of the Martyrs | Panama |
| 11 | Armed Forces Day | Liberia |
| 12 | Zanzibar Revolution Day | Tanzania |
| 13 | National Liberation Day | Togo |
| 15 | Martin Luther King Holiday | USA |
| 15 | Adults Day | Japan |
| 15 | Arbor Day | Jordan |
| 16 | Martyrs Day | Benin |
| 18 | Revolution Day | Tunisia |
| 19 | Timket (Epiphany) | Ethiopia |
| 19 | Epiphany | Ukraine |
| 20 | Heroes Day | Guinea Bissau |
| 20 | Inauguration Day | USA |
| 20 | Grandmother's Day | Bulgaria |
| 21 | Id al-Adha | Islamic Countries |
| 21 | Ol of Altagracia | Dominican Republic |
| 22 | Ukraninan Day | Ukraine |
| 23 | National Handwriting Day | USA |
| 23 | St. Lazarus | Brazil |
| 24 | Republic Day | India |
| 26 | Australia Day | Australia |
| 26 | NRM Day | Uganda |
| 26 | School Nurse Day | USA |
| 29 | Aid al-Ghadir | Iran |
| 29 | Common Sense Day | USA |
| 31 | Independence Day | Nauru |