What date is considered half the year for tax purposes?

For tax purposes in the United States, half the year is typically considered to be June 30. This date marks the midpoint of the calendar year, which runs from January 1 to December 31. Taxpayers often use this date as a reference point for various tax-related calculations and deadlines. However, specific tax regulations may vary, so it's important to consult the IRS guidelines or a tax professional for details.