| 1 Jan, 2023 (Sun) | New Year's Day | National holiday |
| 27 Feb, 2023 (Mon) | Heroes' Day | National holiday |
| 1 Mar, 2023 (Wed) | Heroes' Day | Observance |
| 20 Mar, 2023 (Mon) | March Equinox | Season |
| 26 Mar, 2023 (Sun) | Daylight Saving Time ends | Clock change/Daylight Saving Time |
| 6 Apr, 2023 (Thu) | Maundy Thursday | National holiday |
| 7 Apr, 2023 (Fri) | Good Friday | National holiday |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 14 May, 2023 (Sun) | National Holiday | National holiday |
| 15 May, 2023 (Mon) | Independence Day | National holiday |
| 12 Jun, 2023 (Mon) | Chaco Armistice | National holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 15 Aug, 2023 (Tue) | Founding of Asuncion | National holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 29 Sep, 2023 (Fri) | Boqueron Battle Victory Day | National holiday |
| 1 Oct, 2023 (Sun) | Daylight Saving Time starts | Clock change/Daylight Saving Time |
| 8 Dec, 2023 (Fri) | Virgin of Caacupé Day | National holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 24 Dec, 2023 (Sun) | Christmas Eve | Observance |
| 25 Dec, 2023 (Mon) | Christmas Day | National holiday |
| 31 Dec, 2023 (Sun) | New Year's Eve | Bank holiday |
