APAC traders don't need to trade the entire US session. They need to convert their time-zone advantage into a structured 90-minute window: 21:30-23:00 local captures the highest-edge segment of US tape with ~4× the per-minute volatility of any other window.

China-based traders don't need a simplified US gateway. They need DMA, multi-vendor HTB, real-time order flow, multi-clearing. The Beijing-time advantage (US open 21:30) is structural — whether it converts to P&L depends on the execution stack.

Korean traders read Samsung + SK Hynix close at 15:30 KST, seven hours before SMH opens. That's a real signal — but for gap SIZE, not direction. KOSPI gap fill rate is ~66% across all close buckets; the 22:30 KST execution routine is what converts the time-zone to P&L.

Trading US equities from overseas isn't primarily a time-zone problem — it's an infrastructure problem. The trader in Singapore using a retail mobile app is competing with institutional desks routing through DMA at the same moment, on the same tape, with better borrow access.