adding custom time field in service order

Hi Gurus,

Our customer wants us to add product date and time. I use transaction EEWB to add this date and time filed. In EEWB field types are only BOOL,CHAR,DATS and NUMC. I can add my date by selecting DATS. But how can I create my time field that after cerating I will see it in the table cRMD_ORDERADM_H with data type TIMS??

Do I have to use defined date profile entries to take my time value??? Can't we use custom time field in service??? if yes how??