fix: sync camera clock to local wall-clock time#413
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The Baichuan protocol has no timezone field, cameras store whatever time they receive and display it directly. Local wall-clock time is the correct value to send, matching what manufacturer apps do. Sending UTC caused the camera display to show the wrong time for anyone outside UTC. Uses the system TZ (via TZ env var or /etc/localtime, DST-aware). Falls back to UTC if the local offset cannot be determined. Users who want UTC can set TZ=UTC on the host. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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The Baichuan protocol has no timezone field, cameras store whatever time they receive and display it directly. Local wall-clock time is the correct value to send, matching what manufacturer apps do. Sending UTC caused the camera display to show the wrong time for anyone outside UTC.
Uses the system TZ (via TZ env var or /etc/localtime, DST-aware). Falls back to UTC if the local offset cannot be determined. Users who want UTC can set TZ=UTC on the host.
Fixes #361