pandas.DatetimeIndex.astype  
DatetimeIndex.astype(dtype, copy=True) [source]
 
Create an Index with values cast to dtypes. The class of a new Index is determined by dtype. When conversion is impossible, a ValueError exception is raised.    
Parameters:

dtype : numpy dtype or pandas type copy : bool, default True By default, astype always returns a newly allocated object. If copy is set to False and internal requirements on dtype are satisfied, the original data is used to create a new Index or the original Index is returned.  New in version 0.19.0.     


    
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