The reference stamps each log line from GetLocalTime (0x65a871); benilla stamped UTC. Unix reads localtime_r, Windows calls GetLocalTime. Built and tested on macOS; the unix path type-checked for x86_64 Linux and the Windows path for x86_64-pc-windows-msvc in a scratch crate. Fixes #586 Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>