"EST" stands for Eastern Standard Time. It is a time zone used in various regions of the world, including North America and the Caribbean during standard time. It is typically used in the eastern part of the United States, eastern Canada, and some countries in the Caribbean region. The time offset from Coordinated Universal Time (UTC) for Eastern Standard Time is UTC-5:00. However, it's important to note that time zones can be subject to changes due to factors such as daylight saving time, so it's always a good idea to verify the current time offset for a specific location.