---
id: "date_vietnamese"
kind: "pattern"
status: "draft"
is_pii: false
categories: ["datetime"]
langs: ["vi"]
quality: 68
url: "https://registry.apicrafter.io/datatype/date_vietnamese"
---

# Date with a Vietnamese month name (`date_vietnamese`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Calendar date written in Vietnamese with the month name, day, month and year in the order of the CLDR long (d MMMM, y) and medium (d MMM, y) date formats of the vi locale. The month is the CLDR wide or abbreviated name in the format context, written exactly as CLDR gives it, including any dot or apostrophe; no extra capitalisation variants are accepted.

- Pattern of: `date`
- Personal data (PII): no
- Categories: Date and time (datetime)
- Countries: global
- Languages: Vietnamese (vi)

## Detection

Regular expression (Python `re`):

```
^(?:(?:0?[1-9]|[12]\d|3[01]) (?:tháng\ 10|tháng\ 12|tháng\ 11|tháng\ 9|tháng\ 1|tháng\ 7|tháng\ 5|tháng\ 8|tháng\ 2|tháng\ 4|tháng\ 3|tháng\ 6), \d{4}|(?:0?[1-9]|[12]\d|3[01]) (?:thg\ 12|thg\ 11|thg\ 10|thg\ 9|thg\ 3|thg\ 5|thg\ 2|thg\ 4|thg\ 8|thg\ 7|thg\ 6|thg\ 1), \d{4})$
```

## Examples

- `3 tháng 10, 2024` — 3 October 2024, CLDR long format d MMMM, y
- `25 thg 12, 2024` — 25 December 2024, CLDR medium format d MMM, y
- `tháng 10 2024` (invalid example)

## Sources

- other: <https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-dates-full/main/vi/ca-gregorian.json>

## Quality

Score 68/100. Missing: authoritative source link, mapping (Wikidata, Schema.org, ...), translation, detector coverage.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/date_vietnamese.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/datetime/date_vietnamese.yaml>