RTMD service

OmmConsumer consumer(config.host("1**.***.***.*:14002").username("EM1_****_*********"));        consumer.registerClient(ReqMsg().serviceName("hEDD").domainType(MMT_MARKET_PRICE).name("ESZ1m"), client)        sleep(1200000); 

I get the following updates:

UpdateMsg
    streamId="5"
    domain="MarketPrice Domain"
    updateTypeNum="0"
    seqNum="23296"
    name="ESZ1m"
    serviceId="259"
    serviceName="hEDD"
    Payload dataType="FieldList"
        FieldList
            FieldEntry fid="17" name="ACTIV_DATE" dataType="Date" value="06 DEC 2021"
            FieldEntry fid="5" name="TIMACT" dataType="Time" value="12:37:00:000:000:000"
            FieldEntry fid="4148" name="TIMACT_MS" dataType="UInt" value="45434283"
            FieldEntry fid="731" name="BEST_BSIZ2" dataType="Real" value="16"
            FieldEntry fid="6545" name="NO_BIDORD2" dataType="UInt" value="14"
            FieldEntry fid="740" name="NO_BIDMKR2" dataType="Real" value="14"
        FieldListEnd


    PayloadEnd
UpdateMsgEnd
UpdateMsg
    streamId="5"
    domain="MarketPrice Domain"
    updateTypeNum="0"
    seqNum="23312"
    name="ESZ1m"
    serviceId="259"
    serviceName="hEDD"
    Payload dataType="FieldList"
        FieldList
            FieldEntry fid="17" name="ACTIV_DATE" dataType="Date" value="06 DEC 2021"
            FieldEntry fid="5" name="TIMACT" dataType="Time" value="12:37:00:000:000:000"
            FieldEntry fid="4148" name="TIMACT_MS" dataType="UInt" value="45434283"
            FieldEntry fid="730" name="BEST_BSIZ1" dataType="Real" value="4"
            FieldEntry fid="6544" name="NO_BIDORD1" dataType="UInt" value="4"
            FieldEntry fid="291" name="NO_BIDMMKR" dataType="Real" value="4"
        FieldListEnd

I get real time where the time stamp is in UTC, how do I change the time to exchange Chicago time?