Changing timeslots via service "Scheduler: Edit" leads to "invalid date"

[LukasSolf]

Checklist

• [X] I checked for similar existing issues (both open and closed) before posting.
• [X] I will participate in further discussion about this issue and can help by testing (if requested).

Card Version

v3.2.12

Component Version

v3.3.0

Bug description

Changing timeslots of an existing schedule via the service "Scheduler: Edit" with a datetime variable leads to an "invalid date" note (see attached screenshots below), although the timeslots are added at the correct time.

Steps to reproduce

Call the service "Scheduler: Edit" with the following code:

service: scheduler.edit
metadata: {}
data:
  entity_id: switch.schedule_automatisierung_kaffeemaschine_wecker_lukas
  timeslots:
    - start: >-
        {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
        -timedelta(minutes = 15)).strftime('%H:%M') }}
      stop: >-
        {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
        +timedelta(minutes = 30)).strftime('%H:%M') }}
      actions:
        - service: switch.turn_on
          entity_id: switch.kaffeemaschine
    - start: >-
        {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
        +timedelta(minutes = 30)).strftime('%H:%M') }}
      stop: >-
        {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
        +timedelta(minutes = 60)).strftime('%H:%M') }}
      actions:
        - service: switch.turn_off
          entity_id: switch.kaffeemaschine
  repeat_type: pause
  start_date: >-
    {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
    -timedelta(minutes = 15)).strftime('%Y-%m-%d') }}
  end_date: >-
    {{(states('sensor.status_wecker_lukas') |as_datetime | as_local
    -timedelta(minutes = 15)).strftime('%Y-%m-%d') }}

Additional info

No response

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