GMT to EST Time Converter

GMT refers to the Europe/London timezone, currently ++1 (GMT+1). EST refers to America/New_York, currently --4 (GMT-4). Timezone abbreviation meanings and offsets are calculated live from the IANA tz database, so Daylight Saving Time is always applied correctly.

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

Key Facts

• GMT (Europe/London): current live offset ++1.
• EST (America/New_York): current live offset --4.
• Time difference is computed from live IANA tzdb offsets and may shift by one hour during DST transitions.