What's the big deal on changing clocks?
For an RVer.
I've changed 2 times in one day several times in long tows.
One day three times. Left El Paso on US-180 headed east, changed from Mtn to Central TZ at Culberson County line near Guadalupe Peak, changed from Central TZ to Mtn TZ at NM border south of Carlsbad, changed from Mountain to Central TZ again at TX border just past Hobbs.
Headed west is better because you gain an hour at each crossing.
I won't even mention the potential fun in Arizona where much of the state does not do DST, and the Navaho Nation does DST.