Istanbul
Exact time synced with atomic clocks (IANA + NTP)
Sunday, April 5, 2026
Turkey · Europe/Istanbul · GMT+3
Istanbul and Kolkata Time Difference
Istanbul is 2.5h behind Kolkata
19:24:28
Kolkata
Exact time synced with atomic clocks (IANA + NTP)
Sunday, April 5, 2026
India · Asia/Kolkata · GMT+5:30
Best time for work calls
If you are scheduling a call between Istanbul and Kolkata, the overlap window is limited to typical business hours. When it is 9 am in Istanbul it is 11 am in Kolkata — a workable window for scheduling. The latest reasonable overlap is around 2 pm in Istanbul (5 pm in Kolkata). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Istanbul and Kolkata have a comfortable window for a family call — no awkward alarms required. Istanbul is 2.5 hours behind Kolkata, which gives you about an hour of genuine overlap when both sides are free. Aim for between 6 pm and 6:30 pm in Istanbul — that lands at 8:30 pm to 9 pm in Kolkata, after the school run and before anyone's ready for bed. For a Sunday catch-up or a midweek check-in, this is the sweet spot.
Istanbul
National Independence & Children's Day
Ulusal Egemenlik ve Çocuk Bayramı
Labour Day
İşçi Bayramı
Atatürk Commemoration & Youth Day
Atatürk'ü Anma, Gençlik ve Spor Bayramı
Via Nager.Date
🌅 Dawn6:14:30 AM
☀️ Sunrise6:42:25 AM
🌞 Solar Noon1:07:59 PM
🌇 Golden Hour6:57:08 PM
🌆 Sunset7:33:33 PM
🌃 Dusk8:01:27 PM
Day length12:51:08
Data via sunrisesunset.io
Condition☀️ Clear sky
Temperature14°C
Feels like11°C
Humidity57%
Wind8 mph NE
Data via Open-Meteo · Updates every 30 min
Phase🌖 Waning Gibbous
Illumination87%
CycleWaning
Moon age18.2 days
Moonrise23:27
Moonset07:59
New87% illuminatedFull
Kolkata
No holiday data available for this country.
Via Nager.Date
🌅 Dawn5:03:54 AM
☀️ Sunrise5:26:30 AM
🌞 Solar Noon11:40:29 AM
🌇 Golden Hour5:24:45 PM
🌆 Sunset5:54:29 PM
🌃 Dusk6:17:05 PM
Day length12:27:59
Data via sunrisesunset.io
Condition☁️ Overcast
Temperature26°C
Feels like30°C
Humidity84%
Wind3 mph SW
Data via Open-Meteo · Updates every 30 min
Phase🌖 Waning Gibbous
Illumination87%
CycleWaning
Moon age18.2 days
Moonrise20:58
Moonset07:11
New87% illuminatedFull