Tong quan nhanh so sanh chenh lech gio UTC va GMT tren nhieu quoc gia theo dang danh sach nhanh. Video thu thap cac gia tri do lech va su khac biet ve gio de cho thay thoi gian dia phuong lien quan den UTC nhu the nao. Mot so muc co the khong phan anh thay doi phap ly gan day. Co the dung lam tham khao chung ve cac do lech gio toan cau.
