We see this question several times a year.
The date becomes part of the picture file and can't easily be removed.
It can be removed by someone that is proficient with Photoshop, but it takes about 30 minutes per photo file.
There is one software program that claims to remove the date stamp, but I tried it and it did not work well for me.
But if you want to try it,
You can try before you buy:
Hi I have a sanyo vpc s600 and would like to know how to remove the date and time of the screen,the manual tells how to put on but not how to reverse roll,please help