Plotly Express not displaying datetime #5101

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1. gvwilson

   added

   bugsomething brokensomething broken

   P1needed for current cycleneeded for current cycle

   regressionthis used to workthis used to work

   on Mar 21, 2025
2. TermeHansen commented on Apr 4, 2025

   

   TermeHansen

   on Apr 4, 2025

   More actions

   I see the same issue and is also back to version 5 for now...
3. emilykl commented on Nov 10, 2025

   

   emilykl

   on Nov 10, 2025

   Contributor

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   Hi @Joshua-Powell-Lambda , could you let me know whether you still experience this issue with plotly==6.4.0?

   I can't completely recreate your example since I don't know the contents of local_df, but I wrote the following as a best guess:

   import pandas as pd
   import plotly.graph_objs as go
   
   local_df = pd.DataFrame(
       {
           "reservation_start_week_utc": ["2024-10-07", "2024-10-14", "2024-10-21"],
           "weighted_average_price": [100, 150, 120],
       }
   )
   
   local_df["reservation_start_week_utc"] = pd.to_datetime(
       local_df["reservation_start_week_utc"].apply(
           lambda x: pd.Timestamp(x).to_pydatetime()
       )
   )
   
   fig = go.Figure()
   fig.add_trace(
       go.Scatter(
           x=local_df["reservation_start_week_utc"],
           y=local_df["weighted_average_price"],
       )
   )
   fig.show()

   Running the above code with plotly==6.4.0 gives me the following plot:

   

   which looks correct.

   Let me know if you still experience the issue with the latest Plotly. And if so, if you can provide a complete code example to reproduce the issue, that would be very helpful. I am investigating a similar issue right now (#5355) so I would like to cover this issue with the fix as well, if it is still a problem. Thanks!
4. emilykl commented on Sep 2, 2026

   

   emilykl

   on Sep 2, 2026

   Contributor

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   Closing since I suspect this is resolved; please go ahead and open a new issue if the problem persists in plotly.py >= v7.0.0.
5. emilykl

   closed this as completedon Sep 14, 2026