You will need a Firewire port to connect the miniDV to the PC. A few PC computers have them. If yours does not you can buy an add-on card with a Firewire port. It can be done via USB but you'll get very poor quality video and sound. Search for "computer capture mini dv"
It's not clear what you mean by "displaying" the date and time. If you mean displaying while the video plays, you'll need to edit the video if it wasn't set to show that info while recording. If you mean to display the date and time of the file, i.e. looking at a directory listing of the files, you can get a utility to change the file date and/or time.