West Coast tech companies headquartered in San Francisco, Seattle, and Portland rely on UTC-to-Pacific conversions for infrastructure monitoring, incident response, and coordinating with global teams. Cloud platforms like AWS and GCP report metrics in UTC.
PST is 8 hours behind UTC. A deploy at 18:00 UTC lands at 10 AM Pacific — a reasonable hour for the team to monitor it. During summer, PDT (UTC−7) shifts that same 18:00 UTC deploy to 11 AM local time.
Because UTC is fixed, the offset to Pacific changes twice a year. When Pacific springs forward in March, the gap narrows from 8 to 7 hours. When it falls back in November, the gap returns to 8.