What is the time difference between Karachi and Kolkata?

Kolkata is 30 minutes ahead of Karachi during standard time.

When is the best time to schedule a call between Karachi and Kolkata?

The best times to connect are 9:00 AM GMT+5, 10:00 AM GMT+5, 11:00 AM GMT+5, when both regions are within standard business hours.

Karachi to Delhi Time Converter — GMT+5 to GMT+5:30, 30 minutes difference

24-Hour Overlap Timeline

✅ Overlap: 9:00 AM–6:00 PM in Karachi · 9:00 AM–6:00 PM in Delhi (9h window)

	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
UTC →
🇵🇰 Karachi UTC+5	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a
🇮🇳 Delhi UTC+5:30	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a
🇮🇳 India (IST) UTC+5:30	5a	6a	7a	8a	9a	10a	11a	12p	1p	2p	3p	4p	5p	6p	7p	8p	9p	10p	11p	12a	1a	2a	3a	4a

Both working Working Off hours Sleeping Now

Key Facts: Karachi (GMT+5) vs Delhi (GMT+5:30)

Time Gap

0h 30m

Kolkata ahead

DST Status

✅ Karachi

No DST

✅ Kolkata: No DST

Cities in GMT+5

327

Largest: Karachi

20,249,000 pop.

Overlap Window

9h window

9:00 AM – 6:00 PM (GMT+5)

9:00 AM – 6:00 PM (GMT+5:30)

Find Cities in Karachi & Kolkata Timezones

The GMT+5 and GMT+5:30 timezones are separated by 30 minutes. Karachi is the largest city in the Asia/Karachi zone and Delhi is the largest in Asia/Kolkata. Neither timezone observes daylight saving time, so the difference is constant year-round. For scheduling between these regions, the key fact is: there are 9 hours of mutual business-hours overlap each day.

Best Times to Schedule Calls: Karachi (GMT+5) ↔ Delhi (GMT+5:30)

Karachi (GMT+5)	Kolkata (GMT+5:30)	Quality
6:00 AM	6:00 AM	❌
7:00 AM	7:00 AM	⚠️
8:00 AM	8:00 AM	⚠️
9:00 AM	9:00 AM	✅
10:00 AM	10:00 AM	✅
11:00 AM	11:00 AM	✅
12:00 PM	12:00 PM	✅
1:00 PM	1:00 PM	✅
2:00 PM	2:00 PM	✅
3:00 PM	3:00 PM	✅
4:00 PM	4:00 PM	✅
5:00 PM	5:00 PM	✅
6:00 PM	6:00 PM	⚠️
7:00 PM	7:00 PM	⚠️
8:00 PM	8:00 PM	❌
9:00 PM	9:00 PM	❌

Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.

GMT+5 to GMT+5:30: Complete 24-Hour Time Conversion Table

Karachi (GMT+5)	Kolkata (GMT+5:30)	IST (UTC+5:30)
12:00 AM	12:30 AM	12:30 AM
1:00 AM	1:30 AM	1:30 AM
2:00 AM	2:30 AM	2:30 AM
3:00 AM	3:30 AM	3:30 AM
4:00 AM	4:30 AM	4:30 AM
5:00 AM	5:30 AM	5:30 AM
6:00 AM	6:30 AM	6:30 AM
7:00 AM	7:30 AM	7:30 AM
8:00 AM	8:30 AM	8:30 AM
9:00 AM	9:30 AM	9:30 AM
10:00 AM	10:30 AM	10:30 AM
11:00 AM	11:30 AM	11:30 AM
12:00 PM	12:30 PM	12:30 PM
1:00 PM	1:30 PM	1:30 PM
2:00 PM	2:30 PM	2:30 PM
3:00 PM	3:30 PM	3:30 PM
4:00 PM	4:30 PM	4:30 PM
5:00 PM	5:30 PM	5:30 PM
6:00 PM	6:30 PM	6:30 PM
7:00 PM	7:30 PM	7:30 PM
8:00 PM	8:30 PM	8:30 PM
9:00 PM	9:30 PM	9:30 PM
10:00 PM	10:30 PM	10:30 PM
11:00 PM	11:30 PM	11:30 PM

IST (India Standard Time, UTC+5:30) shown as reference for Indian users. +1/−1 indicates a different calendar day.

327 Cities in Karachi (GMT+5) & 600 Cities in Kolkata (GMT+5:30) — Page 1 of 3

Karachi & 326 more — Karachi (GMT+5, UTC+5)

Ufa, RU Astana, KZ Ashgabat, TM Perm, RU Islamabad, PK Namangan, UZ Quetta, PK Tyumen, RU Kumila, PK Khujand, TJ Bahawalpur, PK Andijon, UZ Parachinar, PK Sargodha, PK Sialkot City, PK Orenburg, RU Qaraghandy, KZ Samarkand, UZ Sukkur, PK Pindi Bhattian, PK Larkana, PK Chiniot, PK Shekhupura, PK Shah Latif Town, PK Sanghar, PK Rahimyar Khan, PK Jhang City, PK Magnitogorsk, RU Oskemen, KZ Dera Ghazi Khan, PK Surgut, RU Gujrat, PK Aqtobe, KZ Cantonment, PK Bhawana, PK Malakwal, PK Mardan, PK Taraz, KZ Thari Mir Wah, PK Semey, KZ Pavlodar, KZ Vahdat, TJ Khipro, PK Nukus, UZ Chak Jhumra, PK Nizhniy Tagil, RU Hafizabad, PK Kasur, PK Kurgan, RU Hisor, TJ Panjakent, TJ Khairpur Tamewah, PK Chakwal, PK Farg`ona, UZ Tursunzoda, TJ Nizhnevartovsk, RU Khanewal, PK Bukhara, UZ Marot, PK Mingaora, PK Qarshi, UZ Sterlitamak, RU Isfara, TJ Mehrabpur, PK Istaravshan, TJ Turbat, PK Khwazakhela, PK Nawabshah, PK Skardu, PK Qo`qon, UZ Kotri, PK Turkistan, KZ Sahiwal, PK Marg`ilon, UZ Qyzylorda, KZ Mirpur Khas, PK Oral, KZ Okara, PK Turkmenabat, TM Thatta, PK Konibodom, TJ Qostanay, KZ Kulob, TJ Chilas, PK Mirpur Bhtoro, PK Mandi Burewala, PK Jizzax, UZ Petropavl, KZ Dasoguz, TM Jacobabad, PK Kokshetau, KZ Angren, UZ Jhelum, PK Saddiqabad, PK Balkanabat, TM Orsk, RU Temirtau, KZ Kuchlagh, PK Aqtau, KZ Termiz, UZ Khapalu, PK Talhar, PK Kohat, PK Mary, TM Muridke, PK Muzaffargarh, PK Chirchiq, UZ Kamensk-Ural'skiy, RU Ziarat, PK Khanpur, PK Ekibastuz, KZ Zlatoust, RU Gojra, PK Panjgur, PK Mandi Bahauddin, PK Eminabad, PK Jaranwala, PK Abbottabad, PK Zhangaozen, KZ Miass, RU Salavat, RU Dadu, PK Urganch, UZ Kopeysk, RU Khairpur Mir's, PK Lodhran, PK Navoiy, UZ Shahrisabz, UZ Bahawalnagar, PK Khuzdar, PK Pakpattan, PK Taxila, PK Zafarwal, PK Berezniki, RU Tando Allahyar, PK Olmaliq, UZ Male, MV Neftekamsk, RU Atyrau, KZ Sarhari, PK Rudnyy, KZ Ahmadpur East, PK Wazirabad, PK Vihari, PK Bokhtar, TJ Nefteyugansk, RU New Mirpur, PK Kamalia, PK Kot Addu, PK Ghotki, PK Nowshera, PK Badin, PK Oktyabr'skiy, RU Swabi, PK Xiva, UZ Tando Muhammad Khan, PK Shahdadpur, PK Jauharabad, PK Goth Tando Sumro, PK Pervouralsk, RU Khushab, PK Dera Ismail Khan, PK Bagu Na Mohra, PK Chaman, PK Pishin, PK Kogon Shahri, UZ Novyy Urengoy, RU Khanty-Mansiysk, RU Charsadda, PK Kandhkot, PK Gujar Khan, PK Noyabrsk, RU Bahrain, PK Kot Radha Kishan, PK Chishtian, PK Chust, UZ Renala Khurd, PK Urgut Shahri, UZ Tobolsk, RU Hasilpur, PK Uch Sharif, PK Koytendag, TM Kambar, PK Attock Khurd, PK Harnai, PK

Delhi & 599 more — Kolkata (GMT+5:30, UTC+5:30)

Kottarassheri, IN Attadappa, IN Barmhan Kalan, IN Mirzapur, IN Nagpur, IN Ghaziabad, IN Supaul, IN Vadodara, IN Rajkot, IN Vishakhapatnam, IN Indore, IN Thane, IN Bhopal, IN Agra, IN Peyanvilai, IN Pimpri-Chinchwad, IN Patna, IN Bilaspur, IN Ludhiana, IN Madurai, IN Jamshedpur, IN Nasik, IN Vijayawada, IN Faridabad, IN Najafgarh, IN Meerut, IN Jabalpur, IN Kalyan, IN Vasai-Virar, IN Panipat, IN Varanasi, IN Kalleli, IN Srinagar, IN Aurangabad, IN Dhanbad, IN Amritsar, IN Aligarh, IN Guwahati, IN Haora, IN Ranchi, IN Gwalior, IN Chandigarh, IN Jodhpur, IN Raipur, IN Kota, IN Bareilly, IN Coimbatore, IN Solapur, IN Hubli, IN Mysore, IN Trichinopoly, IN Moradabad, IN Tiruppur, IN Gurgaon, IN Jalandhar, IN Bhubaneshwar, IN Narela, IN Bhayandar, IN Karimnagar, IN Patiala, IN Shishgarh, IN Colombo, LK Thiruvananthapuram, IN Durgapur, IN Bhiwandi, IN Bhilwara, IN Saharanpur, IN Warangal, IN Shiliguri, IN Salem, IN Kochi, IN Gorakhpur, IN Guntur, IN Karaikandi, IN Haldwani, IN Dhulia, IN Bhavnagar, IN Noida, IN Bhangar, IN Bhilai, IN Mangalore, IN Bihta, IN Hasanpur, IN Cuttack, IN Salimpur, IN Raurkela, IN Tumkur, IN Dehra Dun, IN Kottayam, IN Asansol, IN Bokaro Steel City, IN Kolhapur, IN Nava Raipur, IN Ajmer, IN Nanded, IN Amravati, IN Nellore, IN Dispur, IN Gulbarga, IN Bikaner, IN Agartala, IN Chanda, IN Loni, IN Ujjain, IN Jhansi, IN Ulhasnagar, IN Jammu, IN Tuticorin, IN Purnea, IN Belgaum, IN Vellore, IN Malegaon, IN Jamnagar, IN Bardoli, IN Gaya, IN Ambattur, IN Jalgaon, IN Chhatarpur, IN Kurnool, IN Udaipur, IN Wapi, IN Chauddagram, BD Mathura, IN Sangli, IN Davangere, IN Calicut, IN Mothihari, IN Akola, IN Bettiah, IN Shorapur, IN Tinnevelly, IN Bellary, IN Bhagalpur, IN Manampizha, IN Delhi Cantonment, IN Salt Lake City, IN Etawa, IN Sonipat, IN Quilon, IN Mulangodi, IN Munro Turuttu, IN Karur, IN Jalna, IN Bairia, IN Bhatpara, IN Sirur, IN Kakinada, IN Panihati, IN Rohtak, IN Maler Kotla, IN Kolga, IN Korba, IN Sikar, IN Sasaram, IN Karnal, IN Brahmapur, IN Ahmadnagar, IN Shahjanpur, IN Avadi, IN Khanapur, IN Cuddapah, IN Alamadi, IN Rajahmundry, IN Alwar, IN Sambalpur, IN Muzaffarpur, IN Kamarhati, IN Campiernagar, IN Bijapur, IN Ratnagiri, IN Jagdalpur, IN Rampur, IN Shimoga, IN Kashipur, IN Junagadh, IN Hapur, IN Pattikad, IN Trichur, IN Barddhaman, IN Panvel, IN Nizamabad, IN Parbhani, IN Hisar, IN Fatehpur, IN Birania, IN

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Convert Karachi (GMT+5) to Delhi (GMT+5:30) Time — 30 minutes apart