Based on the research, I'll show you how to properly configure datetime parameters in your

prefect.yml

file. Here's how you can do it: 1. Basic Parameter Setting

yaml
deployments:
  - name: my-deployment
    entrypoint: flow.py:my_flow
    parameters:
      date_param: "2024-01-01T00:00:00+00:00"  # ISO 8601 format

2. With Schedule and Dynamic Parameters

yaml
deployments:
  - name: my-deployment
    entrypoint: flow.py:my_flow
    parameters:
      date_param: "2024-01-01T00:00:00+00:00"
    schedule:
      timezone: "UTC"  # or your timezone like "America/New_York"
      # You can also bind parameters to schedules
      parameters:
        date_param: "{{ schedule_time }}"  # This will use the actual schedule time

A few important points to note: 1. Always use ISO 8601 format for datetime strings (

YYYY-MM-DDTHH:MM:SS+HH:MM

) 2. Be explicit about timezones to avoid ambiguity 3. You can use template variables like

{{ schedule_time }}

when working with schedules 4. Make sure your flow's parameter types match the expected datetime format If you'd like to share your specific use case or show me your current

prefect.yml

file, I can provide more targeted assistance. What exactly are you trying to achieve with the datetime parameter?