Istanbul to San Diego, Costa Rica Time Converter

Updating current time…
Istanbul
TurkeyTRT
UTC+3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
San Diego
Costa RicaCST
UTC−6
9h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:00 pm15:00 TRT (UTC+3), Nov 12, 2026 = 6:00 am06:00 CST (UTC-6), Nov 12, 2026

Istanbul is 9 hours ahead of San Diego.

How the time difference changes

Istanbul is 9 hours ahead of San Diego, Costa Rica year-round.

Working hours of 9:00 am to 6:00 pm in Istanbul correspond to 12:00 am to 9:00 am in San Diego, Costa Rica.Working hours of 09:00 to 18:00 in Istanbul correspond to 00:00 to 09:00 in San Diego, Costa Rica.

Compare Istanbul time with San Diego 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).
3:00 pm15:00 in Istanbul, Turkey is 6:00 am06:00 in San Diego, Costa Rica

Istanbul to San Diego 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 Diego. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

3:00 pm15:00 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours
6:00 am06:00 CST (Central Standard Time) (San Diego, Costa Rica). Offset UTC -6:00 hours

3:00 pm15:00 Istanbul, Turkey / 6:00 am06:00 San Diego, Costa Rica

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Hourly time comparison
Istanbul, TurkeySan Diego, Costa Rica
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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
More About Istanbul
Istanbul local time and city facts
Current Time in Turkey
Turkey time now

San Diego Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – Central Standard Time, UTC-6 (no daylight saving time)

San Diego Facts

Country
Costa Rica
Population
16,991
Currency
Colon (CRC)
Geographic Coordinates
9° 53' N Latitude / 84° 00' W Longitude
International Dialing Code
+506
More About San Diego
San Diego local time and city facts