Mo. Rev. Stat. § 115.407
Current with changes from the 2023 Legislative Session
The election judges shall open the polls at six o'clock in the morning and keep them open until seven o'clock in the evening. At seven o'clock in the evening, all voters at the polls, including any in line to vote, shall be permitted to vote.
§ 115.407, RSMo
Effective 1/1/1978