Date and time notation in Vietnam

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Date and time notation in Vietnam []
Full date12 tháng 3 năm 2022
All-numeric date12/03/2022
12-03-2022
12.03.2022 (sometimes)
Time11:19

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

Date[]

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

  • d/m/yyyy (9/1/2021)
  • d-m-yyyy (9-1-2021)
  • dd/mm/yyyy (09/01/2021)
  • dd-mm-yyyy (09-01-2021)

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 span Example Notes
Nửa đêm/Đêm
(Midnight/Night) 		00:00 to 00:59 12 giờ đêm
Sáng
(Morning) 		01:00 (sometimes from 00:00) to 10:59 7 giờ sáng Also abbreviated as "SA" in computer systems (e.g. Windows) to denote "a.m."
Trưa
(Noon) 		11:00 to 12:59 or 13:59 12 giờ trưa
Chiều
(Afternoon) 		13:00 or 14:00 to 17:59 2 giờ chiều Also abbreviated as "CH" in computer systems (e.g. Windows) to denote "p.m."
Tối
(Evening/night) 		18:00 to 21:59 or 22:29 7 giờ tối
Đêm
(Night) 		22:00 or 22:30 to 23:59 11 giờ đêm

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[]

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