| Date and Time is where you set your date and time in Mac OS Classic.
For a very long time, the Macintosh Control Panel was a single window, with all functions displayed simultaneously. One of these functions was setting the date and time of your happy little Macintosh.
With System 5.0, a new Control Panel was released, with different sections (cdevs) for different functions. General Controls was where to set the time here.
This continued until System 7.0, when the Date and Time cdev was released. At this time, it was only used for changing the date and time formats (for non-American systems) making it useful exactly once.
System 7.5 included SuperClock!, which was rolled into the Date and Time control panel, along with the date and time setting functions, formerly in General Controls. For users accustomed to deleting Date and Time to save disk space, this became a problem. | 
