The game-speed, game-time update and game-time set messages were dropped. The login time packet also applied a malformed body and kept unset fields as 31 and 63.
Reference: each handler reads its body, refuses one not exactly its length with the "Malformed message" line, and decodes an all-ones field as -1 (`0x642b30`):
- **Set** steps back a minute and advances (`0x6434d0`), so an unset field lands at 00:01.
- **Sync** steps forward or banks a skip count (`0x6436c0`).
- **Frame tick** pays the skip (`0x6435a0`). It runs from world entry to logout (`0x401684`, `0x401f04`).
- **Rate** is clamped to [1/60, 60], NaN kept (`0x643820`).
Changed: the four bodies parse with exact-length goldens, and the clock is a port of the reference's, ticking only in the world. The day number uses UTC civil days, a written deviation from `mktime`. Tests pin each step.
Fixes#2056Fixes#2082🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sam Sung
374556aef3