更改Tomcat 7应用程序的时区 - Openshift

Question

我已经在openshift（免费版）上部署了一个Web应用程序，并且一直在努力修复时区而没有运气。我的时区“亚洲/科伦坡”。我怎样才能做到这一点？

我的应用程序托管在Apache Tomcat 7服务器中。

   // gives me current date from server time zone
   java.util.Date date = new Date();

   // However for now I manage to fix the issue with below code
   // without having to change it from server side.
   public static Date getNormalizedDate() {

     Calendar today = Calendar.getInstance(TimeZone.getTimeZone("Asia/Colombo"));
     Calendar cal = Calendar.getInstance();

     cal.set(Calendar.DATE, today.get(Calendar.DATE));
     cal.set(Calendar.MONTH, today.get(Calendar.MONTH));
     cal.set(Calendar.MONTH, today.get(Calendar.MONTH));
     cal.set(Calendar.HOUR_OF_DAY, today.get(Calendar.HOUR_OF_DAY));
     cal.set(Calendar.MINUTE, today.get(Calendar.MINUTE));
     cal.set(Calendar.SECOND, today.get(Calendar.SECOND));

     return (cal.getTime());
  }