public DBInstance withTimezone(String timezone) {
        setTimezone(timezone);
        return this;
    }
<p>
The time zone of the DB instance. In most cases, the <code>Timezone</code> element is empty.
<code>Timezone</code> content appears only for RDS for Db2 and RDS for SQL Server DB instances that were created
with a time zone specified.
</p>

@param timezone
       The time zone of the DB instance. In most cases, the <code>Timezone</code> element is empty.
       <code>Timezone</code> content appears only for RDS for Db2 and RDS for SQL Server DB instances that were
       created with a time zone specified.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DBInstance.java