CST to GMT Time Converter

CST refers to the America/Chicago timezone, currently --5 (GMT-5). GMT refers to Europe/London, currently ++1 (GMT+1). Timezone abbreviation meanings and offsets are calculated live from the IANA tz database, so Daylight Saving Time is always applied correctly.

Representative cities: New York (United States) for CST and London (United Kingdom) for GMT.

Key Facts

• CST (America/Chicago): current live offset --5.
• GMT (Europe/London): current live offset ++1.
• Time difference is computed from live IANA tzdb offsets and may shift by one hour during DST transitions.