Is there a time difference in Vietnam

According to Baidu Library, the time difference between Vietnam and China is-1 hour, and the time in Vietnam is-1 hour. For example, the time in Vietnam is 2022-11-/kloc-0,09: 00, and the time in Beijing is 2022-. So there is a time difference between Vietnam and China.

Socialist Republic of Vietnam (Vietnamese: C? ng haa X？ h？ Me, Ch? ngh？ A Vi? T Nam (English: Socialist Republic of Viet Nam), referred to as "Vietnam", is a socialist country in Asia. Located at the southeast end of Indo-China Peninsula in Southeast Asia, the terrain is long and narrow, slightly S-shaped, bordering China, Guangxi and Yunnan in the north, Laos and Cambodia in the west, with a long and narrow territory of about 330,000 square kilometers, close to the South China Sea of China, and a coastline of more than 3,260 kilometers. It is a multi-ethnic country with a population of 98.47 million (2022), which is divided into 58 provinces and 5 municipalities directly under the central government.