Axiom v26.3 Chart URL Params: timeend is read in the viewer's time zone and ignores the timezone param

For chart URL parameters, the docs say timezone "will override the browser's default settings or what a user may have set up in their Preferences." In our tests the chart displays in the correct timezone zone, but timeend is read in the viewer’s own zone. One link can opens a different time window for each viewer.

1. From machine in Eastern with Anonymous, Open https://<axiom-server>/#chart=New&timeend=10/05/2026 9:45:00 AM&timeduration=30m&timemode=Pause&timezone=Pacific Standard Time&sourcetag[]=<any tag>
2. Expected: chart shows 9:15 to 9:45 AM Pacific.
3. Actual: chart shows 6:15 to 6:45 AM Pacific. 9:45 was read as Eastern (6:45 Pacific) and then displayed in Pacific.
4. Putting timezone= before timeend in the URL gives the same result.