an editor on the VMS operating system
"The sysadmin used EDT to edit the configuration files directly from the terminal."
In plain English: EDT is an abbreviation for Eastern Daylight Time, which is used to describe the time zone observed during summer months along the eastern coast of North America.
"There is no such thing as an edt, because this string of letters does not form a standard English word and has no definition in any dictionary. You might be thinking of IDT (Integrated Device Technology) or perhaps meant to type a different term entirely; please check your spelling so I can provide the correct example sentence you need."
Initialism of Eastern Daylight Time. Contrast with EST.
"When traveling east, remember to adjust your watch forward an hour when switching from EST to EDT."