Timezone Converter
GMT to EST Converter
BidirectionalFixed offsetDay shift detectionConversion table
GMT → EST
−5h
GMT = UTC±0 · EST = UTC-5
Quick Answer
GMT is 5 hours ahead of EST. Subtract 5 hours from GMT to get EST.
How to Convert GMT to EST
GMT (Greenwich Mean Time) is UTC±0, and EST (Eastern Standard Time) is UTC-5. To convert GMT to EST, subtract 5 hours from the GMT time. For example, 3:00 PM GMT becomes 10:00 AM EST. If the result goes below midnight (00:00), the converted time falls on the previous day.
GMT vs BST — UK Daylight Saving
The UK uses GMT in winter and BST (British Summer Time, UTC+1) from late March to late October. This converter uses fixed GMT (UTC±0). During BST, the difference to EST is 6 hours (BST to EST), not 5. For live UK time that handles BST automatically, check our United Kingdom Time Now tool.
Common Use Cases
- Scheduling meetings between UK and US East Coast teams
- Converting server timestamps from GMT/UTC to EST
- Financial market coordination — London Stock Exchange to NYSE
- International event scheduling across Atlantic time zones
- Flight arrival time conversions for transatlantic travel