When it comes to time, there’s no reason why you shouldn’t have a clock in every room in your house, even your bathroom. People don’t normally put clocks in the bathroom because it might look odd, but when you are conscious about how precious time is, why not have a clock in your bathroom as well regardless of how long you take to get in and out of there. The trick with clocks is that they tend to be fragile and the waterproof kinds are designed for outdoor use.
There are bathroom clocks that have been designed to withstand the humidity that you’d find in a bathroom. Some designers have come up with functional ideas like putting suction cups so that you can mount them on mirrors. They might look like novelty items to some people but there is no reason why they shouldn’t tell time as well as all the other clocks in your house.