DatetimeIndex.dayofyear The ordinal day of the year
DatetimeIndex.sym_diff(*args, **kwargs)
DatetimeIndex.duplicated(*args, **kwargs)
DatetimeIndex.size return the number of elements in the underlying data
DatetimeIndex.is_lexsorted_for_tuple(tup)
DatetimeIndex.astype(dtype, copy=True)
DatetimeIndex.is_quarter_start Logical indicating if first day of quarter (defined by frequency)
DatetimeIndex.putmask(mask, value)
DatetimeIndex.is_type_compatible(typ)
DatetimeIndex.minute The minutes of the datetime
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