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.
| 2015 Day | Public Holiday |
| Thursday, January 01 | New Year's Day |
| Saturday, January 03 | Prophet's Birthday |
| Monday, January 05 | Prophet's Birthday (observed) |
| Monday, January 12 | Zanzibar Revolution Day |
| Friday, April 03 | Good Friday |
| Monday, April 06 | Easter Monday |
| Tuesday, April 07 | Sheikh Abeid Amani Karume Day |
| Sunday, April 26 | Union Day |
| Monday, April 27 | Union Day (observed) |
| Friday, May 01 | International Workers' Day |
| Tuesday, July 07 | Saba Saba Day |
| Saturday, July 18 | Eid al-Fitr |
| Sunday, July 19 | Eid al-Fitr (second day) |
| Monday, July 20 | Eid al-Fitr (observed) |
| Tuesday, July 21 | Eid al-Fitr (second day) (observed) |
| Saturday, August 08 | Nane Nane Day |
| Monday, August 10 | Nane Nane Day (observed) |
| Wednesday, September 23 | Eid al-Adha |
| Wednesday, October 14 | Mwalimu Nyerere Day |
| Thursday, November 05 | Inauguration of President John Magufuli |
| Wednesday, December 09 | Independence and Republic Day |
| Thursday, December 24 | Prophet's Birthday |
| Friday, December 25 | Christmas Day |
| Saturday, December 26 | Boxing Day |
| Monday, December 28 | Boxing Day (observed) |