`numpy:datetime_data`

Signature

built-in datetime_data ( dtype , / )

Get information about the step size of a date or time type.

The returned tuple can be passed as the second argument of numpy.datetime64 and numpy.timedelta64.

dtype : dtype: The dtype object, which must be a datetime64 or timedelta64 type.

unit : str: The datetime unit <arrays.dtypes.dateunits> on which this dtype is based.
count : int: The number of base units in a step.

import numpy as np
dt_25s = np.dtype('timedelta64[25s]')
np.datetime_data(dt_25s)
np.array(10, dt_25s).astype('timedelta64[s]')

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The result can be used to construct a datetime that uses the same units as a timedelta

np.datetime64('2010', np.datetime_data(dt_25s))

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