Swing State Project has a very helpful list of voting closing times. Here is the list expanded with important election links where you can get real-time unofficial results (i.e., real numbers to work with instead of bullshit exit polls and ancillary prognostication):

Indiana (Eastern)
6:00pm
IN-02, IN-03, IN-07, IN-08, IN-09
Election Results

Kentucky (Eastern)
6:00pm
KY-02, KY-03, KY-04
Kentucky State Board of Elections

Florida (Peninsula)
7:00pm
FL-09, FL-13, FL-16, FL-22, FL-24, FL-Gov
Florida Department of State

Georgia
7:00pm
GA-08, GA-12
Georgia Election Results

Indiana (Western)
7:00pm
IN-02, IN-03, IN-07, IN-08, IN-09
Indiana Election Day HQ

Kentucky (Western)
7:00pm
KY-02, KY-03, KY-04
Kentucky State Board of Elections

New Hampshire (Townships)
7:00pm
NH-01, NH-02
General Election Results

South Carolina
7:00pm
SC-05, SC-Gov
South Carolina State Election Commission

Vermont
7:00pm
VT-AL
Vermont Secretary of State

Virginia
7:00pm
VA-02, VA-10, VA-Sen
Commonwealth of Virginia

North Carolina (Standard)
7:30pm
NC-08, NC-11, NC-13
North Carolina State Board of Elections

Ohio
7:30pm
OH-01, OH-02, OH-12, OH-15, OH-18, OH-Gov, OH-Sen
Ohio Secretary of State

West Virginia
7:30pm
WV-01, WV-02
West Virginia Secretary of State

Alabama
8:00pm
AL-Gov
Alabama — Secretary of State — Elections Division

Connecticut
8:00pm
CT-02, CT-04, CT-05, CT-Sen
Connecticut Secretary of State

Delaware
8:00pm
Delaware Election Results

Florida (Panhandle)
8:00pm
FL-09, FL-13, FL-16, FL-22, FL-24, FL-Gov
Florida Election Results

Illinois
8:00pm
IL-06, IL-08, IL-10, IL-Gov
Illinois State Board of Elections

Kansas
8:00pm
KS-02
Kansas Secretary of State (looks like no real-time stats)

Maine
8:00pm
ME-Gov
Elections Division

Maryland
8:00pm
MD-Gov, MD-Sen
State Board of Elections

Massachusetts
8:00pm
MA-Gov
Elections Division

Michigan (Most of state)
8:00pm
MI-Gov, MI-Sen
Unofficial Results

Mississippi
8:00pm
Secretary of State — Elections

Missouri
8:00pm
MO-Sen
Election Night Reporting

New Hampshire (Cities)
8:00pm
NH-01, NH-02
General Election Results

New Jersey
8:00pm
NJ-05, NJ-07, NJ-Sen
Division of Elections

Oklahoma
8:00pm
Unofficial Results

Pennsylvania
8:00pm
PA-04, PA-06, PA-07, PA-08, PA-10, PA-Gov, PA-Sen
Elections Information

South Dakota (Eastern)
8:00pm
SD-Gov
General Election Results

Tennessee
8:00pm
TN-Sen
Division of Elections

Texas (Eastern)
8:00pm
TX-14, TX-17, TX-23, TX-32, TX-Gov
Texas Election Returns

Arkansas
8:30pm
AR-Gov
Arkansas Elections

North Carolina (Optional)
8:30pm
NC-08, NC-11, NC-13
Election Results

Arizona
9:00pm
AZ-01, AZ-05, AZ-08, AZ-Sen
General Election Results

Colorado
9:00pm
CO-04, CO-05, CO-07, CO-Gov
Elections Center

Louisiana
9:00pm
LA-02, LA-03
Election Results Inquiry

Michigan (Western U.P.)
9:00pm
MI-Gov, MI-Sen
Unofficial Results

Minnesota
9:00pm
MN-01, MN-02, MN-06, MN-Gov, MN-Sen
General Election Results

Nebraska
9:00pm
NE-01, NE-03
Unofficial Results

New Mexico
9:00pm
NM-01
Unofficial Results

New York
9:00pm
NY-03, NY-13, NY-19, NY-20, NY-24, NY-25, NY-26, NY-29, NY-Gov
Board of Elections

Rhode Island
9:00pm
RI-Gov, RI-Sen
Unofficial Results

South Dakota (Western)
9:00pm
SD-Gov
General Election Results

Texas (Western)
9:00pm
TX-14, TX-17, TX-21, TX-23, TX-32, TX-Gov
Texas Election Returns

Wisconsin
9:00pm
WI-08, WI-Gov
Multiple links (not given out to public)

Wyoming
9:00pm
WY-AL
Unofficial results

Idaho (Southern)
10:00pm
ID-01, ID-Gov
Unofficial Results

Iowa
10:00pm
IA-01 , IA-02, IA-04, IA-Gov
Secretary of State

Montana
10:00pm
MT-Sen
Elections Bureau (no real-time results link)

Nevada
10:00pm
NV-02, NV-03, NV-Gov, NV-Sen
Election Results

North Dakota (Eastern)
10:00pm
Election Results

Oregon (Western)
10:00pm
OR-Gov
Unofficial Election Results

Utah
10:00pm
Election Results

California
11:00pm
CA-04, CA-11, CA-50, CA-Gov
Election Results

Hawaii
11:00pm
Office of Elections

Idaho (Panhandle)
11:00pm
ID-01, ID-Gov
Unofficial Results

North Dakota (Western)
11:00pm
Election Results

Oregon (Eastern)
11:00pm
OR-Gov
Unofficial Election Results

Washington
11:00pm
WA-05, WA-08, WA-Sen
Washington Secretary of State

Alaska (Mainland)
12:00am
AK-Gov
Alaska Division of Elections

Alaska (Western Aleutians)
1:00am
AK-Gov
Alaska Division of Elections