Format of HP 95LX time change structure:
Offset	Size	Description	)
 00h	WORD	old year
 02h	BYTE	old month
 03h	BYTE	old date
 04h	BYTE	old day
 05h	BYTE	old hour
 06h	BYTE	old minute
 07h	BYTE	old second
 08h	BYTE	old hundredth of a second
 09h  9 BYTEs	new time in same format as old time