For USDT it can take up to just 5 - 20 Minute because of network confirmation?
But for PayPal Exchange is instant, But keep note that PayPal can also hold the money for 48 hours for some security Check up,
Sometimes it happened, But not everyday, Once the Money drop to our PayPal Account, Once you get your money Instant into your MoMo Wallet Simple.
But for other Payment Methods Like USDT, Binance, Bank, Webmoney. Pyypl Card, Litecoin and more..... can take up to just 2 - 20 Minute?