4D Keeper is developed for automatic synchronization with exact-time servers. It is one of the simplest and handiest time-synchronizers for Windows ever made. The program helps to be sure of your PC clock accuracy. With just two buttons, you will be able to detect whether your Windows clock displays exact time. Since the program works automatically, you will forget about setting time on your computer. The first automatic mode allows periodical adjustment of clock (every day, week or month, according to your settings). The second mode runs the program as soon as Windows starts. You will also be able to adjust PC clock manually. The program has an original interface, and does not look like any of the analogous software products. At the same time, the interface is very simple and does not have anything unnecessary for clock adjustment. In addition to full functionality and ease-of-use, the program allows color setting for the user interface. This feature helps to arrange the program according to the user's desktop settings. The installation package contains several color schemes for the interface. You will be able to create your own color schemes as well. The main features of the program include PC clock synchronization with the exact-time servers (including NIST time servers), automatic switch from one time server to another in case of unavailability, color schemes support (including the ability to create and to edit them), and transparency support. Main window contains only 3 buttons. First two of them help you to adjust settings of your clock; the third button hides the window. To make the main window of the program either visible or invisible, you just need to double click left mouse button at 4D Keeper icon in the System tray. Click right mouse button to see the pop-up menu. With the handy pop-up menu you can synchronize your clock; open/close Main Window; open Settings Dialog Window; register your copy of 4D Keeper; read the help files and get program information