Kolkata
Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
India Β· Asia/Kolkata Β· GMT+5:30
Kolkata and London Time Difference
Kolkata is 4.5h ahead of London
London
Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
United Kingdom Β· Europe/London Β· GMT+1
Best time for work calls
If you are scheduling a call between Kolkata and London, the overlap window is limited to typical business hours. When it is 1 pm in Kolkata it is 9 am in London β a workable window for scheduling. The latest reasonable overlap is around 5 pm in Kolkata (12 pm in London). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Kolkata and London have a comfortable window for a family call β no awkward alarms required. Kolkata is 4.5 hours ahead of London, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Kolkata β that lands at 1:30 pm to 5:30 pm in London, 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.
Kolkata
No public holidays on record for this country
Daylight Cycle
π
Dawn4:32:51 AM
βοΈ Sunrise4:57:52 AM
π Solar Noon11:42:09 AM
π Golden Hour5:54:06 PM
π Sunset6:26:26 PM
π Dusk6:51:26 PM
Day length13:28:33
Data via sunrisesunset.io
Current Weather
Conditionβ
Temperatureβ
Feels likeβ
Humidityβ
Windβ
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waning Gibbous
Illumination74%
CycleWaning
Moon age19.8 days
Moonrise22:02
Moonset09:27
London
Battle of the Boyne
Jul 13in 9dSummer Bank Holiday
Aug 3in 30dSummer Bank Holiday
Aug 31in 58d
Daylight Cycle
π
Dawn4:04:58 AM
βοΈ Sunrise4:51:36 AM
π Solar Noon1:06:09 PM
π Golden Hour8:27:14 PM
π Sunset9:20:42 PM
π Dusk10:07:21 PM
Day length16:29:06
Data via sunrisesunset.io
Current Weather
Conditionβ
Temperatureβ
Feels likeβ
Humidityβ
Windβ
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waning Gibbous
Illumination74%
CycleWaning
Moon age19.8 days
Moonrise23:38
Moonset10:49