⚠️ Heads up: The US and UK are currently switching clocks on different dates — the offset is temporarily hours instead of the usual 5.
EST ↔ GMT Time Converter
Instantly convert between Eastern Time and Greenwich Mean Time — DST-aware
🗽 New York
🍁 Toronto
☀️ Miami
🦞 Boston
🎡 London
🍀 Dublin
🐟 Lisbon
🧊 Reykjavik
EST — Eastern Time
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GMT — Greenwich Mean Time
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Current offset: loading…
Quick Reference — EST to GMT
| 🇺🇸 EST (New York) | 🇬🇧 GMT (London) |
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EST vs EDT — What Is the Difference?
Many people search for “EST to GMT” year-round, but technically EST only applies from November to March. From March to November, New York and Toronto operate on EDT (Eastern Daylight Time), which is UTC−4 rather than UTC−5. This makes the gap to GMT just 4 hours during that period (assuming the UK has also switched to BST). In everyday conversation, people often say “EST” even in summer, something that you do not need to worry about when using our tool.