Day Date Month Holiday Sunday 01 Jan New Year's Day Sunday 23 Apr National Sovereignty and Children's Day Monday 01 May Labour and Solidarity Day Friday 19 May The Commemoration of Ataturk, Youth and Sports Day Saturday 24 Jun Ramadan Feast Sunday 25 Jun Ramadan Feast Monday 26 Jun Ramadan Feast Tuesday 27 Jun Ramadan Feast Saturday 15 Jul Democracy and National Unity Day Wednesday 30 aug Victory Day Thursday 31 Aug Eid Al-Adha (Feast of the Sacrifice)(Half Day) Friday 01 Sep Eid Al-Adha (Feast of the Sacrifice) Saturday 02 Sep Eid Al-Adha (Feast of the Sacrifice) Sunday 03 Sep Eid Al-Adha (Feast of the Sacrifice) Monday 04 Sep Eid Al-Adha (Feast of the Sacrifice) Saturday 28 Oct Republic Day Sunday 29 Oct Republic Day Source: http://www.borsaistanbul.com/en/products-and-markets/official-holidays