Date and time notation in Vietnam
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Date and time notation in Vietnam describes methods of expressing date and time used in Vietnam.
| Full date | 7 tháng 4 năm 2025 |
|---|---|
| All-numeric date | 07/04/2025 07-04-2025 07.04.2025 (sometimes) |
| Time | 21:27 |
Date
Summarize
Perspective
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:
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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 | |
|---|---|---|---|
| Đêm (Night) |
00:00 to 00:59 | 12 giờ đêm | |
| Sáng (Morning) |
01:00 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 14:59 | 12 giờ trưa | |
| Chiều (Afternoon) |
15:00 to 17:59 | 3 giờ chiều | Also abbreviated as "CH" in computer systems (e.g. Windows) to denote "p.m." |
| Tối (Evening/night) |
18:00 to 23:59 | 7 giờ tối |
References
See also
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