Yes, a clock would show the same time when it's not moving, assuming it is functioning properly and calibrated correctly. The movement or motion of a clock does not affect its ability to measure or display time accurately.
Clocks, whether mechanical or electronic, operate based on a consistent and regular mechanism or oscillator. The movement of the clock's hands or the display of digital numbers is driven by this internal mechanism, which typically relies on a power source, such as a battery or electricity.
When a clock is stationary or not in motion, its internal mechanism continues to function, keeping track of time and displaying it accordingly. The passage of time is independent of the physical movement of the clock itself. Therefore, as long as the clock is powered and functioning correctly, it will show the same time whether it is stationary or in motion.