get created time with Timezone for Message in Service Module?

Hi,

We need Setting or Solution in Service Module for our Groups with HQ in Bremen and diff. international Support Teams in Far East, working together on the SO Ticket system for our global End user,  now the Support Teams in Singapore need the created Time of Message should be their local SG time plus the used Time Zone setting for their User group or their Category; in SO Database is only our initial configured local Time in Bremen saved, that’s not enough.