That sort of thing begs to be researched, because it's absurd, lol.
If you want to do 'something' make sure to cut it before lights come on. If it is the only plant, turn off the light-timer the night before so you can sleep in a bit. This will reduce what's going on inside the plant by avoiding photosynthetic processes. it's "optimal" but i don't know how important it actually is. I've not noticed much difference when i sleep in and forget to turn off light night before.
Every day a plant doesn't get enough photosynthetic energy, they contract.. they get smaller. While 48 hours may not cause it to contract much, it is incontrovertibly smaller after 48 hours of darkness and this is in direct conflict with the goal, i think.
There are some contexts when this may be useful, but it's because of some other negative impact. E.G. If the trichomes are being evaporated off the top. how can you tell? does it look more developed up top or 5-6" below (not counting new growth like foxtailing). If you have more trichomes below, a slight dark period may help, but i wouldn't go 48 hours.. i'd just raise the hot lights the last 7-14 days. (and look into a light that doesn't evaporate trichomes at the height you need them to bloom a plant)
so, in general now.. but in extreme cases you might find a net benefit from it, but nonetheless it is not based onscience and is most likely a net negative 99% of the time.