Replace pytz with standard library timezone

[TheRealHaoLiu]

SUMMARY

Refactored code to use Python's built-in datetime.timezone and zoneinfo instead of pytz for timezone handling. This modernizes the codebase and removes the dependency on pytz, aligning with current best practices for timezone-aware datetime objects.

ISSUE TYPE

• Bug, Docs Fix or other nominal change

COMPONENT NAME

• API

ADDITIONAL INFORMATION

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Note

Replaces pytz with Python’s built-in datetime.timezone and zoneinfo across schedules, API preview, cleanup command, and tests, and tidies related pytest warnings.

• Timezone migration:
  • Replace pytz with stdlib datetime.timezone/zoneinfo in awx/api/views/__init__.py (schedule preview UTC conversion), awx/main/models/schedules.py (all UTC conversions), and awx/main/management/commands/cleanup_jobs.py (partition datetime parsing).
• Schedules:
  • Use datetime.timezone.utc for UNTIL, next_run, dtstart, dtend, and end-date calculations in awx/main/models/schedules.py.
• Tests:
  • Update to use timezone.utc and ZoneInfo; adjust mocks and datetime constructions in awx/main/tests/functional/models/test_schedule.py.
• Config:
  • Clean up pytest.ini warnings (remove obsolete USE_TZ note).

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud