The number of days in 4 months can vary depending on which months you are referring to because months have different lengths (28 to 31 days).

Typical month lengths:

• January: 31 days
• February: 28 days (29 in a leap year)
• March: 31 days
• April: 30 days
• May: 31 days
• June: 30 days
• July: 31 days
• August: 31 days
• September: 30 days
• October: 31 days
• November: 30 days
• December: 31 days

General estimates:

• If you average months as 30 days each, then 4 months ≈ 120 days.
• If you consider an exact 4-month period, you need to specify which months.

Example calculations:

• January to April: 31 + 28 (non-leap year) + 31 + 30 = 120 days
• March to June: 31 + 30 + 31 + 30 = 122 days
• May to August: 31 + 30 + 31 + 31 = 123 days

If you want a precise number, please specify the start month or exact date range.