Probably not the fuse. I took mine apart and found a burn mark on the led display glass. You'll probably have to have it repaired or replaced.
Typically, the connections to the resistors on the board go bad. Check out my bio page for info on how to remove the clock for service.
You can take it out nd send it in for repairs or get an expensive replacement from your dealer.
What is the QUESTION?
Clock removal is relatively straight forward. I have a removal instructions .pdf on a website, please check my bio for details.
Removal is relatively straight forward, it is easier to see with pictures then explain in text. Please check out my bio page for info on how to remove and service the clock.
A dead or intermittent clock is a fairly common issue with this era of vehicle. They go bad internally. Check out my bio page for info on how to remove it and have it serviced.
A digital clock can be looked at and the time will be known immediately. You do not need to know how to tell time with a digital clock.
While holding the clock button in, press the hour until correct hour is displayed and then press minute until correct minute is displayed.
The Casio Pathfinder atomic timekeeping fuction uses radio frequencies to synch itself with the U.S. radio controlled clock operated by the NIST located in Colorado.
A digital clock is the quietest.
digital clock
You can purchase a digital clock radio online from stores such as Best Buy. Alternatively, you can purchase digital clock radios from retailers such as Amazon.