title: Convert numeric (days) to numeric (months) in R
body: <p>How do I convert a list of survival times for patients in days to months in R? I would like to perform the survival analysis such as KM curve using months instead of days.</p>
  <p>The raw dataset comes in days. For example, Patient 1 - 500, Patient 2 - 450, Patient 3 - 600 etc. There are no units (only numerals) and similarly I would like numerals in months.</p>
  <p>Thanks in advance for your help.</p>