Public holidays
1900, Portugal, Sintra
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1900 | Ano Novo |
| 2 | Friday, 13 April 1900 | Sexta-Feira Santa |
| 3 | Wednesday, 25 April 1900 | Dia da Liberdade |
| 4 | Tuesday, 1 May 1900 | Dia do Trabalhador |
| 5 | Sunday, 10 June 1900 | Dia de Portugal |
| 6 | Thursday, 14 June 1900 | Corpo de Deus |
| 7 | Friday, 29 June 1900 | Dia de São Pedro |
| 8 | Wednesday, 15 August 1900 | Assunção |
| 9 | Friday, 5 October 1900 | Implantação República |
| 10 | Thursday, 1 November 1900 | Todos os Santos |
| 11 | Saturday, 1 December 1900 | Independência |
| 12 | Saturday, 8 December 1900 | Imaculada Conceição |
| 13 | Tuesday, 25 December 1900 | Natal |