Constantine to Istanbul Time Converter

Updating current time…
Constantine
AlgeriaCET
UTC+1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Istanbul
TurkeyTRT
UTC+3
2h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

1:00 pm13:00 CET (UTC+1), Oct 26, 2026 = 3:00 pm15:00 TRT (UTC+3), Oct 26, 2026

Constantine is 2 hours behind Istanbul.

How the time difference changes

Constantine is 2 hours behind Istanbul year-round.

Working hours of 9:00 am to 6:00 pm in Constantine correspond to 11:00 am to 8:00 pm in Istanbul.Working hours of 09:00 to 18:00 in Constantine correspond to 11:00 to 20:00 in Istanbul.

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

Time Difference

CET (Central European Time) is 2 hours behind TRT (Turkey Time).
1:00 pm13:00 in Constantine, Algeria is 3:00 pm15:00 in Istanbul, Turkey

Constantine to Istanbul call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in Constantine which corresponds to 11am-6pm11:00-18:00 in Istanbul

1:00 pm13:00 CET (Central European Time) (Constantine, Algeria). Offset UTC +1:00 hour
3:00 pm15:00 TRT (Turkey Time) (Istanbul, Turkey). Offset UTC +3:00 hours

1:00 pm13:00 Constantine, Algeria / 3:00 pm15:00 Istanbul, Turkey

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
Constantine, AlgeriaIstanbul, Turkey
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Constantine Time Zone and Facts

Time Zone

Abbreviation / Offset
CET – Central European Time, UTC+1 (no daylight saving time)

Constantine Facts

Country
Algeria
Alternative Names
CZL, Cirta, Constantina, Constantine, Konstantina, Konstantini, jun shi tan ding, kanstainta'ina, konsutantinu, qsntynh, qsntynt, qwnstntyn, Κωνσταντίνη, Константина, קונסטנטין, قسنطينة, قسنطینه, कांस्टैंटाइन, コンスタンティーヌ, 君士坦丁
Population
448,028
Currency
Dinar (DZD)
Geographic Coordinates
36° 21' N Latitude / 6° 36' E Longitude
International Dialing Code
+213
More About Constantine
Constantine local time and city facts

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