February 23, 2023 to February 24, 2023. The Major League of America refers to the MathLeague in the United States, which is an exploration and research activity of mathematical thinking in primary and secondary schools with outstanding influence in the United States and North America, and also a mathematical academic activity with global influence in the world. The sixth grade examination time is any time from 8: 30 am to 65438+0: 00 pm on Saturday, February 23, 2023. 1 level to level 4, level 7 to1level 2: at any time from 2:00 pm to 6:30 pm on Saturday, February 23rd, 2023; Grade 5: Any time from 8: 30 am to 65438+0 pm on Sunday, February 24, 2023. The deadline for registration is June 5438+February 24, 2023.