# parse_datetime

> **Function** in `langsmith`

📖 [View in docs](https://reference.langchain.com/python/langsmith/_openapi_client/_utils/_datetime_parse/parse_datetime)

Parse a datetime/int/float/string and return a datetime.datetime.

This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.

Raise ValueError if the input is well formatted but not a valid datetime.
Raise ValueError if the input isn't well formatted.

## Signature

```python
parse_datetime(
    value: Union[datetime, StrBytesIntFloat],
) -> datetime
```

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[View source on GitHub](https://github.com/langchain-ai/langsmith-sdk/blob/d6cd6082f09e7826a2d6afe444ae6119e61b82a6/python/langsmith/_openapi_client/_utils/_datetime_parse.py#L69)