How many hours is UTC ahead of EST?
As abbreviations, EST is always 5 hours behind of UTC: UTC is UTC+0 and EST is UTC−5. To convert, subtract 5 hours.
Check which label you actually need: EST (Eastern Time is on EDT today). A time written with an abbreviation that is not in use is usually meant as the local time, so convert between the places instead: right now EST is 4 hours behind of UTC.
When the UTC to EST time difference changes
For most of the year EST is 4 hours behind of UTC. From 1 November to 31 December 2026, EST is 5 hours behind of UTC instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
| Dates | EST vs UTC | Length |
|---|---|---|
| 8 March 2026 to 31 October 2026 | 4 hours behind | 238 days |
| 1 November 2026 to 31 December 2026 | 5 hours behind | 61 days |
| 1 January 2027 to 13 March 2027 | 5 hours behind | 72 days |
| 14 March 2027 to 6 November 2027 | 4 hours behind | 238 days |
| 7 November 2027 to 31 December 2027 | 5 hours behind | 55 days |
Best time for a meeting between UTC and EST
- When EST is 4 hours behind of UTC: 4 shared office hours, 13:00 to 17:00 in UTC (09:00 to 13:00 in EST).
- When EST is 5 hours behind of UTC: 3 shared office hours, 14:00 to 17:00 in UTC (09:00 to 12:00 in EST).