IST to CST Time Converter

IST refers to the Asia/Kolkata timezone, currently ++5:30 (GMT+5:30). CST refers to America/Chicago, currently --5 (GMT-5). Timezone abbreviation meanings and offsets are calculated live from the IANA tz database, so Daylight Saving Time is always applied correctly.

Representative cities: Delhi (India) for IST and New York (United States) for CST.

Key Facts

• IST (Asia/Kolkata): current live offset ++5:30.
• CST (America/Chicago): current live offset --5.
• Time difference is computed from live IANA tzdb offsets and may shift by one hour during DST transitions.