Public holidays
1866, Perú
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1866 | Año Nuevo |
| 2 | Thursday, 29 March 1866 | Jueves Santo |
| 3 | Friday, 30 March 1866 | Viernes Santo |
| 4 | Tuesday, 1 May 1866 | Día del Trabajo |
| 5 | Thursday, 7 June 1866 | Batalla de Arica y Día de la Bandera |
| 6 | Friday, 29 June 1866 | Día de San Pedro y San Pablo |
| 7 | Monday, 23 July 1866 | Día de la Fuerza Aérea |
| 8 | Saturday, 28 July 1866 | Día de la Independencia |
| 9 | Sunday, 29 July 1866 | Día de la Independencia |
| 10 | Monday, 6 August 1866 | Batalla de Junin |
| 11 | Thursday, 30 August 1866 | Día de Santa Rosa de Lima |
| 12 | Monday, 8 October 1866 | Combate de Angamos |
| 13 | Thursday, 1 November 1866 | Día de Todos los Santos |
| 14 | Saturday, 8 December 1866 | Día de la Inmaculada Concepción |
| 15 | Sunday, 9 December 1866 | Batalla de Ayacucho |
| 16 | Tuesday, 25 December 1866 | Navidad |