Istanbul to Saint John’s Time Converter

Updating current time…
Istanbul
TurkeyTRT
UTC+3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Saint John’s
Antigua and BarbudaAST
UTC−4
7h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:00 pm15:00 TRT (UTC+3), Oct 27, 2026 = 8:00 am08:00 AST (UTC-4), Oct 27, 2026

Istanbul is 7 hours ahead of Saint John’s.

How the time difference changes

Istanbul is 7 hours ahead of Saint John’s year-round.

Working hours of 9:00 am to 6:00 pm in Istanbul correspond to 2:00 am to 11:00 am in Saint John’s.Working hours of 09:00 to 18:00 in Istanbul correspond to 02:00 to 11:00 in Saint John’s.

Compare Istanbul time with Saint John’s time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

TRT (Turkey Time) is 7 hours ahead of AST (Atlantic Standard Time).
3:00 pm15:00 in Istanbul, Turkey is 8:00 am08:00 in Saint John’s, Antigua and Barbuda

Istanbul to Saint John’s call time
Best time for a conference call or a meeting is between 4pm-6pm16:00-18:00 in Istanbul which corresponds to 9am-11am09:00-11:00 in Saint John’s

3:00 pm15:00 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours
8:00 am08:00 AST (Atlantic Standard Time) (Saint John’s, Antigua and Barbuda). Offset UTC -4:00 hours

3:00 pm15:00 Istanbul, Turkey / 8:00 am08:00 Saint John’s, Antigua and Barbuda

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
Istanbul, TurkeySaint John’s, Antigua and Barbuda
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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

Saint John’s Time Zone and Facts

Time Zone

Abbreviation / Offset
AST – Atlantic Standard Time, UTC-4 (no daylight saving time)

Saint John’s Facts

Country
Antigua and Barbuda
Population
24,226
Currency
Dollar (XCD)