@zens thanks for starting this thread!
i was talking about this with my partner, and we realized something: in spanish, when you move an event from 1pm to 2pm, the verb you would use is "atrasar", whereas if you move it from 2pm to 1pm, the verb would be "adelantar".
now, "atrasar" comes from "atrΓ‘s" (behind, back), and "adelantar" comes from "adelante" (front, forward)
so, even though i voted for the 1st option in your poll, it seems i'm more familiar with the 2nd via my first language π