The number of seconds in a month varies because months have different lengths. On average, a month has about 30.44 days. Multiply by 24 hours, 60 minutes, and 60 seconds: 30.44 × 24 × 60 × 60 = 2,629,744 seconds (approximate). For precise values, use the specific month: e.g., February has 2,419,200 seconds (28 days).