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Incorrect handling of np.datetime64[ns] date values #3957
Description
Dates specified using numpy datetime64 with [ns] precision are handled incorrectly in plotting. Dates with microsec [us] precision or lower work as expected.
t0 = np.datetime64("2022-10-20T00:00:00").astype("datetime64[ns]")
t1 = np.datetime64("2022-10-21T00:00:00").astype("datetime64[ns]")
fig = go.Figure()
fig.add_trace(go.Scatter(x=[t0, t1], y=[3, 4], mode="lines"))
fig.show()
Activity
AaronStiff commentedon Feb 22, 2023
This is indeed a bug. However, a workaround would be to use
plotly.expressas the issue is not present there.