Before the 2012 US presidential election, Associated Press published for each state the earliest possible time (in Eastern Standard Time) for the declaration of results as follows (source). By this they meant the times at which the polling stations close, which in some cases (thanks for the clarification, @Bobson) is when results are "called" by news organisations on the basis of private polls, including exit polls, and demographic statistics.
But is there a reasonably reliable list available of when the states are likely to decare their official preliminary results in 2016, or even when they did in 2012?
1 Indiana 6.00 pm
2 Kentucky 6.00 pm
3 Florida 7.00 pm
4 Georgia 7.00 pm
5 New Hampshire 7.00 pm
6 South Carolina 7.00 pm
7 Vermont 7.00 pm
8 Virginia 7.00 pm
9 North Carolina 7.30 pm
10 Ohio 7.30 pm
11 West Virginia 7.30 pm
12 Alabama 8.00 pm
13 Connecticut 8.00 pm
14 Delaware 8.00 pm
15 District Of Columbia 8.00 pm
16 Illinois 8.00 pm
17 Kansas 8.00 pm
18 Maine 8.00 pm
19 Maryland 8.00 pm
20 Massachusetts 8.00 pm
21 Michigan 8.00 pm
22 Mississippi 8.00 pm
23 Missouri 8.00 pm
24 New Jersey 8.00 pm
25 North Dakota 8.00 pm
26 Oklahoma 8.00 pm
27 Pennsylvania 8.00 pm
28 Rhode Island 8.00 pm
29 Tennessee 8.00 pm
30 Texas 8.00 pm
31 Arkansas 8.30 pm
32 Colorado 9.00 pm
33 Louisiana 9.00 pm
34 Minnesota 9.00 pm
35 Nebraska 9.00 pm
36 New Mexico 9.00 pm
37 New York 9.00 pm
38 South Dakota 9.00 pm
39 Wisconsin 9.00 pm
40 Wyoming 9.00 pm
41 Arizona 10.00 pm
42 Iowa 10.00 pm
43 Montana 10.00 pm
44 Nevada 10.00 pm
45 Utah 10.00 pm
46 California 11.00 pm
47 Hawaii 11.00 pm
48 Idaho 11.00 pm
49 Oregon 11.00 pm
50 Washington 11.00 pm
51 Alaska 1.00 am