63rd meridian west
In the Canadian province of Quebec , the 63rd meridian is used as a time zone boundary , with all land to its west falling within the Eastern Time Zone and all land to its east in the Atlantic Time Zone ( never used DST ) . 
<triplet> Canadian <subj> Quebec <obj> contains administrative territorial entity <subj> Eastern Time Zone <obj> located in time zone <triplet> Quebec <subj> Canadian <obj> located in the administrative territorial entity <subj> Eastern Time Zone <obj> located in time zone