Information about legal national holidays across the globe.
Islamic holidays depend on the sighting of the moon: dates not yet announced are estimates and may move by a day.
Weekend holidays are displayed in gray.
| 2017 Day | Public Holiday |
| Sunday, January 01 | New Year's Day |
| Monday, January 02 | New Year's Day (observed) |
| Thursday, January 12 | Zanzibar Revolution Day |
| Friday, April 07 | Sheikh Abeid Amani Karume Day |
| Friday, April 14 | Good Friday |
| Monday, April 17 | Easter Monday |
| Wednesday, April 26 | Union Day |
| Monday, May 01 | International Workers' Day |
| Monday, June 26 | Eid al-Fitr |
| Tuesday, June 27 | Eid al-Fitr (second day) |
| Friday, July 07 | Saba Saba Day |
| Tuesday, August 08 | Nane Nane Day |
| Saturday, September 02 | Eid al-Adha |
| Monday, September 04 | Eid al-Adha (observed) |
| Saturday, October 14 | Mwalimu Nyerere Day |
| Monday, October 16 | Mwalimu Nyerere Day (observed) |
| Friday, December 01 | Prophet's Birthday |
| Saturday, December 09 | Independence and Republic Day |
| Monday, December 11 | Independence and Republic Day (observed) |
| Monday, December 25 | Christmas Day |
| Tuesday, December 26 | Boxing Day |