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:
Asia/Kolkata Timezone Specifications & DST Rules
About the IST Abbreviation
IST stands for Asia/Kolkata. It is observed across central and western Africa at UTC +05:30.
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:
Frequently Asked Questions about Kolkata Time
What is the current local time and timezone in Kolkata?
Kolkata operates on Asia/Kolkata (abbreviated as IST). The standard offset is UTC +05:30.
What does IST timezone stand for?
IST stands for Asia/Kolkata. It is 1 hour ahead of Greenwich Mean Time (GMT+1 / UTC+1).
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.