Borsa Istanbul (BIST) Trading Hours Explained

Borsa Istanbul (BIST) opens at 10:00 TRT and closes at 18:00 TRT, Monday through Friday. That schedule does not shift. Turkey locked its clocks to UTC+3 in 2016 and no longer observes daylight saving time, so the exchange runs the same hours in January as it does in July.

When Does Borsa Istanbul Open and Close?

BIST runs a single continuous block with a brief pre-market call auction:

There is no separate afternoon or evening window. The pre-market phase handles price discovery; the main auction runs straight through to the close.

BIST Open and Close in TRT

All times are Turkey Time (UTC+3), year-round:

• Open:10:00 TRT
• Close:18:00 TRT
• Days: Monday through Friday

Turkey does not observe daylight saving time in 2026 or 2027. The offset stays at UTC+3. No spring-forward, no fall-back.

BIST Hours in US Eastern Time

The US regular session and BIST do not share a single minute of overlap.

On 15 January 2026, New York is 8 hours behind Istanbul: - BIST opens10:00 TRT =02:00 EST - BIST closes18:00 TRT =10:00 EST - NYSE opens09:30 EST =17:30 TRT

On 15 July 2026, New York is 7 hours behind Istanbul: - BIST opens10:00 TRT =03:00 EDT - BIST closes18:00 TRT =11:00 EDT - NYSE opens09:30 EDT =16:30 TRT

The US market opens at16:30 TRT in summer and17:30 TRT in winter. BIST has 90 minutes or less remaining. For a trader in New York, the only actionable window is that final stretch.

BIST Hours in Central European Time

This is the strongest connection. On 15 January 2026, Paris is 2 hours behind Istanbul: - BIST opens10:00 TRT =08:00 CET - BIST closes18:00 TRT =16:00 CET

On 15 July 2026, Paris is 1 hour behind Istanbul: - BIST opens10:00 TRT =09:00 CEST - BIST closes18:00 TRT =17:00 CEST

The full 8-hour trading day sits inside European business hours. A trader in Frankfurt, Paris or Amsterdam can participate from open to close.

BIST Hours in Asia Pacific Time

On 15 January 2026: - BIST opens10:00 TRT =16:00 Singapore /17:00 Tokyo /19:00 Sydney - BIST closes18:00 TRT =00:00 Singapore (next day) /01:00 Tokyo (next day) /03:00 Sydney (next day)

On 15 July 2026: - BIST opens10:00 TRT =15:00 Singapore /16:00 Tokyo /17:00 Sydney - BIST closes18:00 TRT =23:00 Singapore /00:00 Tokyo (next day) /01:00 Sydney (next day)

Asia-Pacific gets a partial window. BIST opens while Singapore and Tokyo are still in their afternoon session. Sydney catches the first 2 hours in January, 3 hours in July.

Which Trading Sessions Overlap With BIST?

Europe: Full coverage. The entire BIST day falls inside European trading hours.

Asia: Partial coverage. BIST’s first 2 to 3 hours align with the tail end of Asian afternoon activity.

US: No coverage with the US regular session. The US opens after BIST is mostly finished. The only shared window is BIST’s final 90 minutes.

BIST functions as a European-facing exchange for intraday trading. Cross-border arbitrage between BIST and US markets happens after hours or the following day.

Pre-Market and After-Hours

Borsa Istanbul does not run an official after-hours session. The09:40 to10:00 pre-market call auction is the only activity outside the main block.

For price reference after the close, investors track: - BIST closing prices - Futures and derivatives on BIST’s VIOP platform, which may keep different hours - ADR or ETF prices on foreign exchanges

Public Holidays: Days BIST Is Shut

BIST closes on all Turkish public holidays. The 2026 closures:

Eid al-Fitr and Eid al-Adha shift each year. In 2027, Eid al-Fitr lands on 9-11 March and Eid al-Adha on 16-19 May.

Full closure list: Turkey public holidays 2026.

Ramadan and BIST Activity

During Ramadan (approximately 18 February to 19 March 2026), BIST keeps its standard10:00 to18:00 TRT schedule. Hours do not shorten.

Volume can thin in the late afternoon as traders prepare to break the fast at sunset. On 20 March 2026, sunset in Istanbul is19:15 TRT, a full 75 minutes after the close. The final hour often sees lighter activity.