I had Sunday morning departures from SIN and HKG. Nothing was different in SIN, but in HKG, they announced that all three of the flights (to SFO, ORD, and LAX) had adjusted departure times to be ten minutes earlier to help flights align with schedules in the USA modified by daylight savings time.

I was on the LAX flight. It ended up blocking out at it's scheduled departure time and blocked in about 20 minutes early.