code: @Override
      public ModifyInstanceEventStartTimeResult modifyInstanceEventStartTime(ModifyInstanceEventStartTimeRequest request) {
          request = beforeClientExecution(request);
          return executeModifyInstanceEventStartTime(request);
      }
docs: <p>
  Modifies the start time for a scheduled Amazon EC2 instance event.
  </p>
  
  @param modifyInstanceEventStartTimeRequest
  @return Result of the ModifyInstanceEventStartTime operation returned by the service.
  @sample AmazonEC2.ModifyInstanceEventStartTime
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/ModifyInstanceEventStartTime"
  target="_top">AWS API Documentation</a>