Java Data Type - 如何从Instant获取Epoch秒

import java.time.Instant;

public class Main {
  public static void main(String[] args) {

    // same time in millis
    Instant now = Instant.ofEpochMilli(1262347200000l);
    
    long toUnixTimestamp = now.getEpochSecond();
    
    System.out.println(toUnixTimestamp);
  }
}