Updating current time…
TurkeyTRT
UTC+3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Texas, USACST
UTC−6
9h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

6:30 pm18:30 TRT (UTC+3), Nov 1, 2026 = 9:30 am09:30 CST (UTC-6), Nov 1, 2026

Istanbul is 9 hours ahead of San Antonio.

How the time difference changes

For most of the year, Istanbul is 8 hours ahead of San Antonio. From Nov 1, 2026 to Mar 14, 2027, Istanbul is 9 hours ahead of San Antonio.

For most of the year, working hours of 9:00 am to 6:00 pm in Istanbul correspond to 1:00 am to 10:00 am in San Antonio. At other times of the year, working hours of 9:00 am to 6:00 pm in Istanbul correspond to 12:00 am to 9:00 am in San Antonio.For most of the year, working hours of 09:00 to 18:00 in Istanbul correspond to 01:00 to 10:00 in San Antonio. At other times of the year, working hours of 09:00 to 18:00 in Istanbul correspond to 00:00 to 09:00 in San Antonio.

Compare Istanbul time with San Antonio time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

TRT (Turkey Time) is 9 hours ahead of CST (Central Standard Time).
6:30 pm18:30 in Istanbul, Turkey is 9:30 am09:30 in San Antonio, TX, USA

Istanbul to San Antonio call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm17:30-18:30 in Istanbul which corresponds to 8:30am-9:30am08:30-09:30 in San Antonio. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

6:30 pm18:30 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours
9:30 am09:30 CST (Central Standard Time) (San Antonio, TX, USA). Offset UTC -6:00 hours

6:30 pm18:30 Istanbul, Turkey / 9:30 am09:30 San Antonio, TX, USA

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Hourly time comparison
Istanbul, TurkeySan Antonio, TX, USA
4:00pm previous day CDT UTC-5
5:00pm previous day CDT UTC-5
6:00pm previous day CDT UTC-5
7:00pm previous day CDT UTC-5
8:00pm previous day CDT UTC-5
9:00pm previous day CDT UTC-5
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11:00pm previous day CDT UTC-5
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16:00 previous day CDT UTC-5
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Istanbul Time Zone and Facts

Time Zone

Abbreviation / Offset
TRT – Turkey Time, UTC+3 (no daylight saving time)

Istanbul Facts

Country
Turkey
Alternative Names
Bizanc, Bizánc, Byzance, Byzantion, Byzantium, Byzanz, Constantinoble, Constantinopla, Constantinople, Constantinopolen, Constantinopoli, Constantinopolis, Costantinopoli, Estambul, IST, Istamboul, Istambul, Istambuł, Istampoul, Istanbul, Istanbúl, Isztambul, Konstantinapoly, Konstantinopel, Konstantinopolo, Konstantinoupoli, Konstantinoupolis, Konstantinápoly, Kustantiniyah, Micklagard, Micklagård, Mikligardur, Mikligarður, Stamboul, Stambul, Stambula, Stambuł, Tsarigrad, Vizantija (Vizantija), Vyzantio, astnbwl, bijantium, byuzantion, byzntywn, iseutanbul, istambula, isutanburu, stin Poli [stimˈboli], yi si tan bu er, İstanbul, Βυζάντιο, Βυζαντιο, Ισταμπουλ, Ισταμπούλ, Κωνσταντινουπολη, Κωνσταντινούπολη, Κωνσταντινούπολις, στην Πόλι [stimˈboli], Византија (Vizantija), Истанбул, Стамбул, ביזנטיון, اسطنبول, इस्तांबुल, ইস্তাম্বুল, イスタンブール, ビュザンティオン, 伊斯坦布尔, 비잔티움, 이스탄불
Population
15,701,602
Currency
Lira (TRY)
Geographic Coordinates
41° 00' N Latitude / 28° 56' E Longitude
International Dialing Code
+90
Current Time in Turkey

San Antonio Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – Central Standard Time, UTC-6 (now)
CDT – Central Daylight Time, UTC-5 (daylight saving time)
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (CDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
123456789101112Sunday, November 7, 2027 at 2:00 amSunday, November 7, 2027 at 02:00: clocks go back 1 hour to 1:00 am01:00 (CST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.

San Antonio Facts

Country
USA
State
Texas
Alternative Names
SAT, San Antonijus, San Antonio, San Antonio (Texas), San Antonio de Bejar, San Antoniyo, San Antònio, San-Antonia, San-Antonio, Sanantonio, Sanctus Antonius, can antoniyo, saen-antonio, saina entoniyo, san antoniyo, san antwnyw, san'antonio, san-antʼonio, sana antoni'o, sena amtoniyo, sheng an dong ni ao, Σαν Αντόνιο, Сан Антонио, Сан-Антонио, Сан-Антоніа, Сан-Антоніо, Սան Անտոնիո, סאן אנטאניא, סן אנטוניו, سان آنتونیو, سان أنطونيو, سان انٹونیو, सॅन अँटोनियो, सैन एन्टोनियो, স্যান অ্যান্টোনিও, ਸਾਨ ਆਂਤੋਨੀਓ, சான் அந்தோனியோ, శాన్ అంటోనియో, സാൻ അന്റോണിയോ, แซนแอนโทนีโอ, სან-ანტონიო, サンアントニオ, 圣安东尼奥, 聖安東尼奧, 샌안토니오
Population
1,526,656
Currency
Dollar (USD)
Geographic Coordinates
29° 25' N Latitude / 98° 29' W Longitude
International Dialing Code
+1