From Saturday, May 10, 2025, to Wednesday, May 21, 2025, there are 12 calendar days total. To count the number of days excluding weekends (Saturdays and Sundays):

• The weekends in this period are:
  • Saturday, May 10 (today)
  • Sunday, May 11
  • Saturday, May 17
  • Sunday, May 18

These 4 weekend days should be excluded. So, total days excluding weekends = 12 days - 4 weekend days = 8 days. Therefore, there are 8 weekdays (business days) from May 10, 2025, to May 21, 2025, excluding weekends