How to convert numpy datetime64 [ns] to python datetime?

How to convert numpy datetime64 [ns] to python datetime?

You can convert a NumPy datetime64 object to a Python datetime object using the astype() method to convert the NumPy array to a Python list, and then use list comprehension to iterate over each element and convert it to a Python datetime object. Here's how you can do it:

import numpy as np from datetime import datetime # Example numpy datetime64 [ns] array numpy_datetime_array = np.array(['2024-05-10T12:00:00', '2024-05-11T13:00:00'], dtype='datetime64[ns]') # Convert to Python datetime objects python_datetime_list = [np.datetime64(ts).tolist() for ts in numpy_datetime_array] # Print the resulting Python datetime objects for dt in python_datetime_list: print(dt)

In this example:

  • We create an example NumPy datetime64[ns] array numpy_datetime_array.
  • We convert each element of the NumPy array to a Python datetime object using the tolist() method within a list comprehension.
  • Finally, we print the resulting Python datetime objects.

The tolist() method converts the NumPy datetime64 object to a native Python datetime object, allowing you to use it seamlessly with other Python libraries that expect datetime objects.

Examples

  1. "Convert numpy datetime64 [ns] to python datetime example" Description: This query seeks an example demonstrating the conversion of a numpy datetime64 object with nanosecond precision to a Python datetime object.

    import numpy as np import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = numpy_dt.astype(datetime.datetime) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  2. "Convert numpy datetime64 to datetime in Python" Description: This query is looking for a method to convert a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.tolist() / 1e9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  3. "Numpy datetime64 to Python datetime conversion code" Description: This query aims to find a code snippet for converting a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype('O') / 1e9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  4. "Convert numpy datetime64 to datetime in Python code" Description: This query looks for a code snippet demonstrating the conversion of a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype('datetime64[s]').tolist()) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  5. "Numpy datetime64 to datetime conversion Python example" Description: This query seeks an example illustrating how to convert a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype('datetime64[ns]').tolist() / 1e9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  6. "How to change numpy datetime64 to Python datetime" Description: This query is about changing a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype(datetime) / 1e9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  7. "Convert numpy datetime64 to python datetime without timedelta" Description: This query is interested in a method to convert a numpy datetime64 object to a Python datetime object without using timedelta.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype('datetime64[ns]').astype(int) * 1e-9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  8. "Convert numpy datetime64 to python datetime using pandas" Description: This query seeks a method to convert a numpy datetime64 object to a Python datetime object using the pandas library.

    import numpy as np import pandas as pd # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime using pandas python_dt = pd.to_datetime(numpy_dt) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  9. "How to convert numpy datetime64 to Python datetime object" Description: This query is about the process of converting a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype('int64') * 1e-9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

  10. "Convert numpy datetime64 to Python datetime object code" Description: This query is interested in finding code demonstrating the conversion of a numpy datetime64 object to a Python datetime object.

    import numpy as np from datetime import datetime # Sample numpy datetime64 object numpy_dt = np.datetime64('2024-05-11T12:30:45.123456789', 'ns') # Convert numpy datetime64 to Python datetime python_dt = datetime.utcfromtimestamp(numpy_dt.astype(int) / 1e9) print("Numpy datetime64:", numpy_dt) print("Python datetime:", python_dt)

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