Yes, hot objects do experience time dilation, but the magnitude of the effect is negligible under normal conditions. Time dilation occurs due to the relative difference in gravitational potential or velocity between two observers.
In the case of hot objects, the temperature is related to the thermal motion of particles within the object. While the particles are in motion, the effect of time dilation on their individual clocks is extremely small because the velocities involved are much lower than the speed of light. The gravitational time dilation for a hot object would also be insignificant unless it is in an extremely strong gravitational field, such as near a black hole.
To observe significant time dilation effects, extremely high velocities or intense gravitational fields are required, such as those near massive objects or in the vicinity of high-energy events. In everyday scenarios, the time dilation experienced by hot objects is negligible and not observable.