---
id: "date_mdy_slash"
kind: "pattern"
status: "draft"
is_pii: false
categories: ["datetime"]
langs: ["common"]
quality: 100
url: "http://registry.apicrafter.io/datatype/date_mdy_slash"
---

# Date as MM/DD/YYYY (United States) (`date_mdy_slash`)

> **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 as month, day and four-digit year separated by slashes, for example 12/25/2024, the usual numeric date in the United States. Most other countries write the day first in the same shape (date_dmy_slash), so a value whose first two numbers are both 12 or less can be read either way.

- Pattern of: `date`
- Personal data (PII): no
- Categories: Date and time (datetime)
- Countries: global
- Languages: Common to most languages (common)

## Detection

Regular expression (Python `re`):

```
^(?:0?[1-9]|1[0-2])/(?:0?[1-9]|[12]\d|3[01])/\d{4}$
```

## Examples

- `12/25/2024` — 25 December 2024
- `1/31/2022` — 31 January 2022
- `25/12/2024` (invalid example)
- `12/25/24` (invalid example)

## Mappings

- qddate: `dt:date:date_usa`

## Supported by tools

- `qddate`

## Translations

- ru: Дата в формате ММ/ДД/ГГГГ (США): Календарная дата в американском порядке: месяц, день и год из четырёх цифр через косую черту, например 12/25/2024.

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/List_of_date_formats_by_country>
- wikipedia: <https://en.wikipedia.org/wiki/Date_and_time_notation_in_the_United_States>
- other: <https://github.com/ivbeg/qddate/blob/v1.1.0/qddate/patterns/base.py>

## Quality

Score 100/100.

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