import java.util.Calendar;
import java.util.TimeZone;
class Main {
/**
* Returns the current time since 1970, UTC, in milliseconds.
*
* @return the current time since 1970, UTC, in milliseconds
*/
public static long currentTimeMillisUTC() {
return Calendar.getInstance(TimeZone.getTimeZone("UTC"))
.getTimeInMillis();
}
}