Date and time notation in Vietnam

Last updated

Date and time notation in Vietnam [ refresh ]
Full date19 tháng 8 năm 2025
All-numeric date19/08/2025
19-08-2025
19.08.2025 (sometimes)
Time05:31

Date and time notation in Vietnam describes methods of expressing date and time used in Vietnam.

Contents

Date

In Vietnam, dates follow the "day month year" order. All-numeric dates can be written as: [1]

A dot in the line (period or full stop) can also be used (i.e. 9.1.2021, 09.01.2021).

In the full form, the month name is alphanumeric. Example: "9 tháng 1 năm 2021". Leading zeros may also be used: "09 tháng 01 năm 2021".

Monday is the first day of the week and Sunday is the last day of the week. [2]

The names of months and days are as follows:

Time

Vietnam uses the 24-hour notations in writing; an "h" or ":" is used as separator, e.g. "13h15" or "13:15". Full hours can be written just with an "h", e.g. "6h" (not "6h00" or "06h00"). Transport timetables use it exclusively, as do legal documents and television schedules. [3] It can also be used orally (e.g. the time 00:05 would be read as Không giờ năm phút ("zero hour, five minutes")).

The 12-hour notations is also used orally but instead of AM/PM, it's necessary to specify the place of the sun:

Time spanExampleNotes
Đêm
(Night)
00:00 to 00:5912 giờ đêm
Sáng
(Morning)
01:00 to 10:597 giờ sángAlso abbreviated as "SA" in computer systems (e.g. Windows) to denote "a.m."
Trưa
(Noon)
11:00 to 14:5912 giờ trưa
Chiều
(Afternoon)
15:00 to 17:593 giờ chiềuAlso abbreviated as "CH" in computer systems (e.g. Windows) to denote "p.m."
Tối
(Evening/night)
18:00 to 23:597 giờ tối

References

  1. "A technical view of FVI: End-to-end Vietnamese ID card OCR". Archived from the original on 2020-10-25.
  2. "DateTime::Locale::vi_VN - Locale data examples for the Vietnamese Vietnam (vi-VN) locale".
  3. "Lịch phát sóng (UTC+07:00)".

See also