Time Difference from Kolkata to Major World Cities
Visual offset comparison between Kolkata and key financial and international communication centers:
Drag the timeline scrubber to compare local hours across both locations:
Sunrise, Sunset and Solar Day Length in Kolkata
Solar cycle and day length calculated for coordinates 22.5726Β° lat, 88.3639Β° lon at an elevation of 6 meters above sea level:
India Standard Time Timezone Specifications & DST Rules
About the IST Abbreviation
IST stands for India Standard Time. It is observed in India (Asia) at UTC +05:30.
Read full IST time zone guide, meanings & active territories →
Travel, Infrastructure & Business Essentials for Kolkata
Essential practical information for international business travelers, digital nomads, and expats visiting Kolkata:
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Related Cities in the Same Region & Timezone
Major commercial and administrative hubs in neighboring territories sharing direct regional links with Kolkata:
Historical Adoption & Legal Timekeeping Governance
Discover the current local time in Kolkata, India, along with comprehensive timezone details for Asia/Kolkata. This detailed guide provides information on the Indian Standard Time (IST), its historical context, and whether Daylight Saving Time is observed. Kolkata, formerly known as Calcutta, is a vibrant metropolis and the capital of West Bengal, a state steeped in rich cultural heritage. Understanding the time zone is crucial for scheduling international calls, coordinating business meetings, or planning travel to this dynamic city. India operates on a single standard time zone, simplifying time calculations across the country. The Asia/Kolkata timezone has a UTC offset of +05:30, meaning it is 5 hours and 30 minutes ahead of Coordinated Universal Time (UTC). This timezone has remained consistent throughout the year, with no seasonal adjustments for Daylight Saving Time. The city's economic importance as a major commercial and financial hub in eastern India makes accurate timekeeping essential. This resource also includes information on the city's demographics, infrastructure, and cultural nuances, providing a holistic view for visitors and those conducting business in Kolkata. We provide up-to-date information to ensure you always have the correct time for Kolkata.
Historical Background: Officially adopted on 1947-08-15. Adopted as the standard time for independent India, replacing various local times.
Legal Time Authority:
Regulated by the Government of India
under official statutory decree The Standard Time Act, 1947.
Frequently Asked Questions about Kolkata Time
What is the current local time and timezone in Kolkata?
Kolkata operates on India Standard Time (abbreviated as IST). The standard offset is UTC +05:30.
What does IST timezone stand for?
IST stands for India Standard Time. It maintains a standard offset of UTC +05:30 from Coordinated Universal Time (GMT / UTC).
Does Kolkata change clocks for Daylight Saving Time (DST)?
No, Kolkata does not observe Daylight Saving Time. The local time remains constant throughout the entire year at UTC +05:30 without seasonal clock shifts.
What power plug and voltage adapter do I need for Kolkata?
India uses plug types C and D and M with a standard voltage of 230V at 50Hz.
How can I convert time or schedule calls with Kolkata?
You can use the interactive 24-hour dual-slider converter directly on this page, or visit our Time Difference Tool and Meeting Planner to schedule seamless cross-timezone calls.