INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_ALARM"
        DI = 0B04h
        STACK:  2 WORDs unused dummies (for calls from high level languages)
                DWORD   pointer to alarm record???
                WORD    ???
Return: ???
        STACK unchanged

Format of alarm record:
Offset  Size    Description
 00h    BYTE    hour
 01h    BYTE    minute
 02h    BYTE    second
 03h    BYTE    unused padding
 04h    WORD    rescheduling interval, in seconds
 06h    BYTE    are seconds significant?
 07h    BYTE    alarm sound
 08h 40 BYTEs   message displayed when alarm activates
 30h    BYTE    task ID of owner
 31h    BYTE    application's own use for sub-class
 32h  4 BYTEs   application's own use for private data