Kernrechtsfrage
Whether the appellant proved timely posting of the appeal before midnight
Extrahierter Entscheid
The appellant did not prove that the appeal was posted before midnight; the evidence, including the envelope note and witness statements, was insufficient.
Extrahierte Begründung
The envelope note was written before the letter was posted and therefore had no evidentiary value for the actual posting time. The witnesses' statements were imprecise and internally not fully convincing; under the strict standard for challenging factual findings, no arbitrariness was shown.