To maximize the value of your currency conversions and secure the most favorable exchange rates at BDO Unibank, it is highly recommended to execute your transactions during standard, active banking hours on regular business weekdays—specifically between 9:00 AM and 3:00 PM local time. During these active trading windows, the global and domestic foreign exchange markets are fully operational, allowing the bank's treasury department to provide the tightest bid-ask spreads and the most accurate real-time market pricing. Conversely, individuals should strictly avoid exchanging large sums of foreign currency during late evenings, weekends, or major national public holidays. When live currency trading desks are closed, commercial banks uniformly apply wider, more conservative exchange spreads to aggressively protect themselves against potential overnight market volatility and unexpected geopolitical currency fluctuations.