Laguna, I'd be exhilarated to convert this for you, however, I have seem to come across an interesting scenario. As for being such youthful and willing to learn new information, I proceeded to google AST time as stated above, and interestingly enough I came across this fact:
"There is no time difference between Eastern Time and Atlantic Standard Time" - Google Search Engine 2016
Mayhaps you have been mistaken or possibly there is an error in your above question?