主芯片为AT89S52,纯软件实现万年历.能正确的走时,不差分毫.正常显示界面能显示年、月、日,时、分、秒,星期,DS18B20检测显示的温度,闹铃是否开启标志，并且星期具有自动正确显示功能；能进行时间设置、日期设置、闹铃设置，并菜单式的良好操作界面。其中在显示与调时期的时候星期不需要调，根据年月日自动正确显示，由于闰年、平年、月大、月小的原因，日期具有自动纠正功能。-The main chip AT89S52, pure software calendar. To correct travel time, not bad nothing. Normal display interface can display year, month, day, hour, minute, second, week, DS18B20 tests showed the temperature, the alarm is turned on signs and week display with auto correct　can be time set, date set, alarm settings, and menu-good interface. In which the display and adjust the time period of weeks do not need to tune automatically display correctly according to years on, due to leap year, average year, month, month, small reasons, the date of the automatic correction feature.