What is the DVRCam different from Normal CCTV camera? 
Normal cctv camera is a camera only, and must work with additional DVR device for video recording. This DVRCam WR C808B has video-out for realtime viewing, and  it can record video by itself.  You only need a Micro-Card (2GB--64GB).

How can set up the time in the DVRCam?

Use the  remote control to DVRCam, and set up on the screen.

DVRCam WR C808B specification

Video Camera B

Dimensions                14cmx12cmx10cm

Gross Weight               620g

Power Adapter             Input: C 100~240V; Output: DC 5V, 1A

Micro processor           ARM9 32-bit microprocessor core

TF Card Support           Up to 64GB

Warranty                     Two-years parts

Video Camera Details

Type                           Black

Digital Video Format     MPEG4/3gp;VGA (640 x480)  

Lens                           6mm

Field of View                60 degrees (diagonal)

Night Vision                 15m
Video Out Interface       BNC type

Minimum illumination       0.1lux/f1.2

SNR                            48db

Operating Temperature -10°C~60°C