Ireland
GMT
India
IST

Time Difference

GMT (Greenwich Mean Time) is 5 hours and 30 minutes behind IST (India Standard Time)
11:30 pm23:30 in Castleknock, Ireland is 5:00 am05:00 in Kolkata, India

Castleknock to Kolkata call time
Best time for a conference call or a meeting is between 8am-12:30pm in Castleknock which corresponds to 1:30pm-6pm in Kolkata

11:30 pm23:30 GMT (Greenwich Mean Time) (Castleknock, Ireland). Offset UTC 0:00 hours
5:00 am05:00 IST (India Standard Time) (Kolkata, India). Offset UTC +5:30 hours

11:30 pm23:30 Castleknock, Ireland / 5:00 am05:00 Kolkata, India

Castleknock, Ireland Kolkata, India
12am (midnight) 5:30 am
1am 6:30 am
2am 7:30 am
3am 8:30 am
4am 9:30 am
5am 10:30 am
6am 11:30 am
7am 12:30 pm
8am 1:30 pm
9am 2:30 pm
10am 3:30 pm
11am 4:30 pm
12pm (noon) 5:30 pm
1pm 6:30 pm
2pm 7:30 pm
3pm 8:30 pm
4pm 9:30 pm
5pm 10:30 pm
6pm 11:30 pm
7pm 12:30 am
8pm 1:30 am
9pm 2:30 am
10pm 3:30 am
11pm 4:30 am
0:00 5:30
1:00 6:30
2:00 7:30
3:00 8:30
4:00 9:30
5:00 10:30
6:00 11:30
7:00 12:30
8:00 13:30
9:00 14:30
10:00 15:30
11:00 16:30
12:00 17:30
13:00 18:30
14:00 19:30
15:00 20:30
16:00 21:30
17:00 22:30
18:00 23:30
19:00 0:30
20:00 1:30
21:00 2:30
22:00 3:30
23:00 4:30

Castleknock Information

Time Zone

Abbreviation / Name
GMT - Greenwich Mean Time
IST - Irish Standard Time
UTC / GMT Offset
0:00 hours during Greenwich Mean Time, currently in use.
+1:00 hour during Irish Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Sunday, October 27, 2024 at 2:00 am local time. DST starts annually the on last Sunday of October. Clocks are turned forward 1 hour to Sunday, October 27, 2024, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Sunday, March 31, 2024 at 1:00 am local time. DST ends annually the on last Sunday of March. Clocks are turned backward 1 hour to Sunday, March 31, 2024, 12:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Castleknock Facts

Country
Ireland
Alternative Names
Caislean Cnucha, Caisleán Cnucha, Kaslnok, kslnak, Каслнок, کسلناک
Population
8,301
Currency
Euro (EUR)
Geographic Coordinates
53° 22' N Latitude / 6° 21' W Longitude
International Dialing Code
+353

Kolkata Information

Time Zone

Abbreviation / Name
IST - India Standard Time
UTC / GMT Offset
+5:30 hours during India Standard Time, currently in use.

Kolkata Facts

Country
India
Alternative Names
CCU, Calcuta, Calcutta, Calcutá, Calcúta, Caligardamana, Kaelkuettae, Kal'kuta, Kal'kutta, Kal'kuttae, Kalikata, Kalikātā, Kalkata, Kalkota, Kalkouta, Kalkueta, Kalkuta, Kalkutta, Kalkútta, Kalküta, Kolkat, Kolkata, Kolkate, Kolkato, Kolkāta, Kälküttä, Kəlkətə, Sealdah, jia er ge da, jia li ji da, kalakata, kalakatta, kalikata, kalkata, keaൽkkatta, klkta, klkth, klkwth, ko l ka ta, kolakata, kolkata, kolkatta, kol‌kata, korukata, kwlkata, kʼolkʼatʼa, qwlqth, Καλκούτα, Калькута, Калькуттæ, Калькутта, Колката, Колкате, Կալկաթա, כלכותה, קאלקאטא, קולקטה, كلكتا, كولكاتا, کلکته, کلکتہ, کولکاتہ, کَلٕکَتا, کەلکەتە, कलकत्ता, कोलकाता, কলকাতা, ਕੋਲਕਾਤਾ, કોલકાતા, କଲିକତା, கொல்கத்தா, కోల్‌కాతా, ಕೊಲ್ಕತ್ತ, കൊൽക്കത്ത, โกลกาตา, ཀ་ལི་ཀུ་ཏ, ကာလကတ္တားမြို့, კოლკატა, ኮልካታ, コルカタ, 加尔各答, 架利吉打, 콜카타
Population
4,631,392
Currency
Rupee (INR)
Geographic Coordinates
22° 33' N Latitude / 88° 21' E Longitude
International Dialing Code
+91