Why doesn't the digital electronic clock display for a period of time after it is powered on?

1, the digital calendar electronic clock crashed. Solution: Restart it.

2. Or the transformer is broken. Solution: It is suggested to restore the electronic clock of perpetual calendar to factory settings or replace it with a new transformer. The perpetual calendar is the oldest solar calendar in ancient legends of China. The name of the perpetual calendar comes from a man named Wannian in Shang Dynasty, who was the editor of this calendar. In order to commemorate his achievements, he named this calendar "perpetual calendar". A perpetual calendar is an annual calendar that records the dates of specific solar and lunar calendars within a certain time range (such as 100 years or more), which is convenient for people in need to query and use. Ten thousand years is just a symbol, indicating a long time span. The perpetual calendars used now include calendars of several years or calendars suitable for several years. Modern perpetual calendars can display various calendars such as solar calendar, lunar calendar, and dry calendar at the same time, and can also contain various functional information such as good or bad luck, holidays, reminders, etc., which is very convenient for people to query and use. Electronic calendar is a modern digital timekeeping product, which uses an independent chip to control internal data operation, and uses LED digital display to display daily information such as date, time, week, solar terms, temperature, etc., and integrates many advanced electronic technologies and modern classic technologies.