The time period for early voting varies from state to state: The date on which early voting begins may be as early as 45 days before the election, or as late as the Friday before the election. The average starting time for early voting across all 33 states is 22 days before the election.
http://www.ncsl.org/research/elections-and-campaigns/absentee-and-early-voting.aspx
Similarly, while a few areas of law are covered by federal law, it is state laws which address the vast majority of legal issues and cases that arise in this nation. Specifically, the U.S. Congress has created a few sets of legislation covering entire areas of law, such as immigration.
http://statelaws.findlaw.com/
Two-thirds of the states--33, plus the District of Columbia--offer some sort of early voting. Early voting allows voters to visit an election official’s office or, in some states, other satellite voting locations, and cast a vote in person without offering an excuse for why the voter is unable to vote on election day.
http://www.ncsl.org/research/elections-and-campaigns/absentee-and-early-voting.aspx
When people think about the law, some of the first things that come to mind might be the Constitution or the Supreme Court. However, the fact is that most of our interactions with legal issues and the law actually involve matters of state and local laws. State vs. Federal Laws. The relationship between state and federal law is a bit similar to that between state and the federal governments.
http://statelaws.findlaw.com/
1 Early Voting: In 33 states and the District of Columbia, any qualified voter may cast a ballot in person during a designated period prior to Election Day. No excuse or justification is required.  Absentee Voting: All states will mail an absentee ballot to certain voters who request one. The voter may return the ballot by mail or in person. In 20 states, an excuse is required, while 27 states and the District of Columbia permit any qualified voter to vote absentee without offering an excuse.
http://www.ncsl.org/research/elections-and-campaigns/absentee-and-early-voting.aspx
There are 323,218,458 people in the United States of America. If everyone in the U.S. lined up single file, the line would stretch around the Earth almost 7 times. That's a lot of people.
http://howmanyofme.com/
The U.S. Census Bureau statistics tell us that there are at least 151,671 different last names and 5,163 different first names in common use in the United States. Some names are more common than others. There are 46,735 people named John Smith in the United States. There are 1,016 people named James Bond, 107 people named Harry Potter , 455 people named George Bush, and 33 people named Emily Dickinson. However, Johnny Cash (34 people) songs aside there are, statistically speaking, very few boys named Sue.
http://howmanyofme.com/
However, the fact is that most of our interactions with legal issues and the law actually involve matters of state and local laws. The relationship between state and federal law is a bit similar to that between state and the federal governments.
http://statelaws.findlaw.com/
States and Capitals. Click the state you're interested in below for quick access to a variety of state specific facts and other useful information. Hover over the state in order to see its abbreviation and capital city. Alabama.
http://www.50states.com/
Sunday: 4 states (Alaska, Illinois, Ohio and Maryland) allow for Sunday voting. 5 states (California, Florida, Georgia, Nevada and Massachussetts, starting in 2016) leave it up to county clerks who may choose to be open on Sundays.
http://www.ncsl.org/research/elections-and-campaigns/absentee-and-early-voting.aspx
how states are there
There are 50 states.