Time in Vietnam

Last updated

Reunified Vietnam follows Indochina Time (ICT), which is seven hours ahead of UTC, ICT is used all year round as Vietnam does not observe daylight saving time. Vietnam shares the same time zone with Thailand, Cambodia, Christmas Island, Laos, and Western Indonesia.


Vietnam referenced ISO 8601 under in 1998 and then created its own standard TCVN 6398-1:1998. [1]


Time in French Indochina

Period in useTime offset from GMTNotes
Prior to 1 July 1906 UTC+07:06:40 Local mean time
1 July 1906 – 30 April 1911 UTC+07:06:30 106°37'30"E French Time
1 May 1911 – 30 December 1942 UTC+07:00 Standard Time Zone
31 December 1942 – 13 March 1945 UTC+08:00 Standard Time Zone
14 March 1945 – 1 September 1945 UTC+09:00 Tokyo Standard Time
2 September 1945 – Activation of Geneva Accords UTC+07:00 Standard Time Zone

Time in North Vietnam

Period in useTime offset from GMTNotes
2 September 1945 – 31 March 1947 UTC+07:00 Hanoi Time Zone
1 April 1947 – Activation of Geneva Accords
After the activation
No Standard Time
UTC+07:00 for zone under peace
UTC+08:00 for zone under attacking
1 January 1968 – 12 June 1975 UTC+07:00 Hanoi Time Zone

Time in South Vietnam

Period in useTime offset from GMTNotes
Activation of Geneva Accords – 30 June 1955 UTC+08:00 Saigon Standard Time
1 July 1955 – 31 December 1959 UTC+07:00 Saigon Standard Time
1 January 1960 – 12 June 1975 UTC+08:00 Saigon Standard Time

Time in Reunified Vietnam

Period in useTime offset from GMTNotes
13 June 1975 – now UTC+07:00 Standard Time Zone

See also

Related Research Articles

Peoples Army of Vietnam Combined military forces of Vietnam

The People's Army of Vietnam, also known as the Vietnamese People's Army (VPA), is the military force of the Socialist Republic of Vietnam. The PAVN is a part of the Vietnam People's Armed Forces and includes: Ground Force, Navy, Air Force, Border Guard & Coast Guard. However, Vietnam does not have a separate Ground Force or Army branch. All ground troops, army corps, military districts and specialised arms belong to the Ministry of Defence, directly under the command of the Central Military Commission, the Minister of Defence, and the General Staff of the Vietnam People's Army. The military flag of the PAVN is the flag of the Socialist Republic of Vietnam, with the words Quyết thắng added in yellow at the top left.

French Indochina Former federal state in Southeast Asia

French Indochina, officially known as the Indochinese Union from 1887 and the Indochinese Federation after 1947, was a grouping of French colonial territories in Southeast Asia until its demise in 1954. It comprised three Vietnamese regions of Tonkin in the north, Annam in the centre, and Cochinchina in the south, Cambodia, Laos and the Chinese territory of Guangzhouwan. The capital for most of its history (1902–45) was Hanoi; Saigon was the capital from 1887 to 1902 and again from 1945 to 1954.

South Vietnam Former country in southeast Asia

South Vietnam, officially the Republic of Vietnam, was a country that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of the Cold War. It first received international recognition in 1949 as the State of Vietnam within the French Union, with its capital at Saigon, before becoming a republic in 1955. South Vietnam was bordered by North Vietnam to the north, Laos to the northwest, Cambodia to the southwest, and Thailand across the Gulf of Thailand to the southwest. Its sovereignty was recognized by the United States and 87 other nations, though it failed to gain admission into the United Nations as a result of a Soviet veto in 1957.

Tonkin Historical name for Northern Vietnam

Tonkin, also spelled Tongkin, Tonquin or Tongking, is an exonym referring to the northern region of Vietnam. During the 17th and 18th centuries, this term referred to the domain Đàng Ngoài under Trịnh lords' control, including both the Northern and Thanh-Nghệ regions, north of the Gianh River. From 1884 to early 1945, this term was used for the French protectorate of Tonkin, composed of only the Northern region.

1954 Geneva Conference 1954 international conference on the dismantling of French Indochina

The Geneva Conference, intended to settle outstanding issues resulting from the Korean War and the First Indochina War, was a conference involving several nations that took place in Geneva, Switzerland, from April 26 to July 20, 1954. The part of the conference on the Korean question ended without adopting any declarations or proposals, so is generally considered less relevant. The Geneva Accords that dealt with the dismantling of French Indochina proved to have long-lasting repercussions, however. The crumbling of the French Empire in Southeast Asia led to the formation of the states of the Democratic Republic of Vietnam, the State of Vietnam, the Kingdom of Cambodia and the Kingdom of Laos.

The Indochina Wars were a series of wars fought in Southeast Asia from 1946 to 1991, between communist Indochinese forces against mainly French, South Vietnamese, American, Cambodian, Laotian and Chinese forces. The term "Indochina" originally referred to French Indochina, which included the current states of Vietnam, Laos and Cambodia. In current usage, it applies largely to a geographic region, rather than to a political area. The wars included:


UTC+07:00 is an identifier for a time offset from UTC of +07:00. In ISO 8601 the associated time would be written as 2021-06-20T16:24:25+07:00. It is 7 hours ahead of the UTC, meaning areas in this time zone would be 07:00 while UTC is shown to midnight (00:00).

Thailand follows UTC+07:00, which is 7 hours ahead of UTC. The local mean time in Bangkok was originally UTC+06:42:04. Thailand used this local mean time until 1920, when it changed to Indochina Time, UTC+07:00; ICT is used all year round as Thailand does not observe daylight saving time. Thailand shares the same time zone with Vietnam, Cambodia, Laos, Christmas Island, and Western Indonesia.

Empire of Vietnam Puppet state of Imperial Japan, c. 1945

The Empire of Vietnam was a short-lived puppet state of Imperial Japan governing the former French protectorates of Annam and Tonkin between March 11 and August 23, 1945.

Sihanouk Trail Military supply route in Cambodia

The Sihanouk Trail was a logistical supply system in Cambodia used by the People's Army of Vietnam (PAVN) and its Viet Cong (VC) guerillas during the Vietnam War (1960–1975). Between 1966 and 1970, this system operated in the same manner and served the same purposes as the much better known Ho Chi Minh Trail which ran through the southeastern portion of the Kingdom of Laos. The name is of American derivation, since the North Vietnamese considered the system integral to the supply route mentioned above. U.S. attempts to interdict this system began in 1969.

Japanese <i>coup détat</i> in French Indochina 1945 overthrow of the French Indochina government by the Japanese

The Japanese coup d'état in French Indochina, known as Meigō Sakusen, was a Japanese operation that took place on 9 March 1945, towards the end of World War II. With Japanese forces losing the war and the threat of an Allied invasion of Indochina imminent, the Japanese were concerned about an uprising against them by French colonial forces.

Trần Trọng Kim Prime minister of Vietnam under Japanese rule (April–August 1945)

Trần Trọng Kim, courtesy name Lệ Thần, was a Vietnamese scholar and politician who served as the Prime Minister of the short-lived Empire of Vietnam, a state established with the support of Imperial Japan in 1945 after Japan had seized direct control of Vietnam from the Vichy French colonial forces during the Second World War. He was an uncle of Bui Diem.

Fédération indochinoise des associations du scoutisme

The Fédération Indochinoise des Associations du Scoutisme was the earliest Scouting governing body in French Indochina, encompassing several smaller Cambodian, Laotian, and Vietnamese Scout associations, open without bias of faith or political viewpoint, from 1930 to 1954. The federation spawned, then later devolved into, the Scouts Lao, the Hội Hướng Đạo Việt Nam and the Angkar Khemarak Kayarith.

Jews are a minor ethno-religious group in Vietnam, presently consisting of only about 300 people. Although Jews have been present in Vietnam and Judaism has been practiced since the late 19th century, most adherents have been, and remain today, expatriates, with few to no native Vietnamese converts.

The postage stamps of Vietnam were issued by a variety of states and administrations. Stamps were first introduced by the French colonial administration. Stamps specifically for Vietnam were first issued in 1945. During the decades of conflict and partitioning, stamps were issued by mutually hostile governments. The reunification of Vietnam in 1976 brought about a unified postal service.

Rail transport in Vietnam

The railway system in Vietnam is owned and operated by the state-owned Vietnam Railways. The principal route, the single track North-South Railway running between Hanoi and Ho Chi Minh City, accounts for 1,726 kilometres (1,072 mi) of the network's total length of 2,600 kilometres (1,600 mi). The national railway network uses mainly metre gauge, although there are several standard gauge and mixed gauge lines in the north of the country.

French Indochina in World War II

In the northern-hemisphere summer of 1940 Germany rapidly defeated the French Third Republic, and colonial administration of French Indochina passed to the French State. In September 1940 Japanese troops first entered parts of Indochina; and in July 1941 Japan extended its control over the whole of French Indochina. The United States, concerned by Japanese expansion, started putting embargoes on exports of steel and oil to Japan from July 1940. The desire to escape these embargoes and to become self-sufficient in resources ultimately contributed to Japan's decision to attack on December 7, 1941 the British Empire and simultaneously the USA and at Pearl Harbor, Hawaii). This led to the USA declaring war against Japan on December 8, 1941. The US then joined the British Empire, already at war with Germany since 1939, and its existing allies in the fight against the Axis powers.

Cambodia follows UTC+07:00, which is 7 hours ahead of UTC. The local mean time in Phnom Penh was originally UTC+7:19. Cambodia used this local mean time until 1920, when it changed to Indochina Time, UTC+07:00; ICT is used all year round as Cambodia does not observe daylight saving time. Cambodia shares the same time zone with Western Indonesia, Thailand, Vietnam, Christmas Island, and Laos.

Time in Laos is given by Indochina Time (ICT) (UTC+07:00). Laos does not currently observe daylight saving time. Laos shares the same time zone with Cambodia, Thailand, Vietnam, Christmas Island, and Western Indonesia.

Tonkin (French protectorate)

Tonkin (東京), or Bắc Kỳ (北圻), was a French protectorate encompassing modern Northern Vietnam. Like the French protectorate of Annam, Tonkin was still nominally ruled by the Nguyễn dynasty but in 1886 the French separated Tonkin from the Nguyễn imperial court in Huế by establishing the office of "Viceroy". However, on 26 July 1897 the position of Viceroy was abolished officially making the French Resident-Superior of Tonkin both the representative of the French colonial administration and the Nguyễn dynasty court in Huế giving him the power to appoint local mandarins. In 1887 Tonkin became a part of the Union of Indochina.


  1. "TCVN-6398-1-1998-Dai-luong-va-don-vi-Khong-gian-va-thoi-gian – bản lưu trữ". Thuvienphapluat.vn. Retrieved 24 March 2019.