Homonym: EST (Estimation)
EST, or Eastern Standard Time, is a time zone that is 5 hours behind Coordinated Universal Time (UTC-5). It is primarily observed in the eastern part of the United States and parts of Canada. EST is used during the fall and winter months, typically from the first Sunday in November until the second Sunday in March.
When daylight saving time begins, EST changes to EDT (Eastern Daylight Time), which is UTC-4. This shift occurs on the second Sunday in March and lasts until the first Sunday in November. Many major cities, including New York and Toronto, operate on EST during the standard time period.