T minus 7 hours. That is how long until both all important Florida and Ohio polls close. As previously explained, whoever gets these two states will almost certainly carry the election, which means that by 8pm Eastern, the marginal votes will be in, and shortly thereafter one after another media organization and network will begin calling both these two states, and the election, for either the Democrats or the GOP (at which point the litigation and recount demands can begin). The complete guide to the closing times of the polls in assorted East to West states, together with their respective seats in the electoral college, is shown below, although it is likely that long before California polling is even concluded the next president will already be known.
Source: Washington Post