To calculate how many days until September 21st from May 17th, 2025:

• May 17 to May 31: 14 days (since May has 31 days)
• June: 30 days
• July: 31 days
• August: 31 days
• September 1 to September 21: 21 days

Now, add them up: 14 + 30 + 31 + 31 + 21 = 127 days

Answer:

There are 127 days until September 21st, 2025, from May 17th, 2025.