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d-v-b/zarr_datetime_example.py

Created July 7, 2025 15:02
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Create a Zarr V3 array with a datetime64 data type
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zarr_datetime_example.py
# /// script
# dependencies = [
# "zarr@git+https://github.com/zarr-developers/zarr-python.git@main",
# ]
# ///
import numpy as np
import zarr
arr = zarr.create_array(store={}, dtype='datetime64[s]', shape=(3,), zarr_format=3)
arr[:] = np.datetime64('now', 's')
print(arr[:])
# ['2025-07-07T14:59:01' '2025-07-07T14:59:01' '2025-07-07T14:59:01']
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