Very confusing, even without the one day! Is that to make the fasting duration shorter?
Putting the clocks back has the effect of making sunset seem to arrive sooner, so you can break your fast earlier, but in reality just causes confusion. Children hear the call to prayer for first light, get up, eat quickly before sunrise, rush to school, look at their smartphones and can't understand why they've arrived an hour early!
But time is a different concept down here. The town hall clock has shown a couple of minutes past two o'clock since the Spanish fled in 1976. Inconsiderately, they never come back to do the winding! If a visitor wants to know how anybody knows what time it is, the question is not understood. "But we have the sun, and the calls to prayer."
From my balcony we can see the sun setting into the ocean. "You can break your fast now. We can eat," say I. "No," says my companion. "We must wait to hear the sunset call to prayer!"