Ansible playbook to demonstrate figuring a reservation window using date commands

reservation-test.yaml

---
- name: Test date handling for machine reservation re-up
  hosts: localhost
  tasks:
    - name: Get tomorrow's date
      ansible.builtin.command: date -d "tomorrow" "+%Y-%m-%d"
      register: tomorrow
      changed_when: false
    - name: Set start date
      ansible.builtin.set_fact:
        start_date: "{{ start | default(tomorrow.stdout) }}"
      changed_when: false
    - name: Set start time
      ansible.builtin.set_fact:
        start_time: "{{ start_date }} 00:00:00"
      changed_when: false
    - name: Set end time
      ansible.builtin.command: date -d "{{ start_date }} +{{ duration | default(31) }}days" "+%Y-%m-%d %H:%M:%S"
      register: end_time
      changed_when: false
    - name: Print it all
      ansible.builtin.debug:
        msg: "Start: {{ start_time }} End: {{ end_time.stdout }}"
      changed_when: false