Pandas to_datetime Function: Convert to DatetimeIndex

The 'to_datetime' function in Pandas is used to convert a column or a list-like object into a 'DatetimeIndex' object.

In the code snippet 'arg._values' represents a list-like object containing the values to be converted to datetime format. The 'convert_listlike()' function is called with 'arg._values' and 'format' as arguments. This function handles the conversion process based on the specified 'format'.

'convert_listlike()' is an internal Pandas function responsible for converting list-like objects to datetime format. It parses various formats and handles missing values. The returned 'values' represents the converted list-like object in datetime format.