Or you can make it a bit more dynamic by allowing the user to select the month and then display the days in that month, as below:
<form>
<select size="1" name="Month">
<option value="January">Jan</option>
<option value="February">Feb</option>
<option value="March">Mar</option>
<option value="April">Apr</option>
<option value="May">May</option>
<option value="June">Jun</option>
</select>
<input type="submit" value="Choose Month">
</form>
<%
dim intDay '// incremental number used in the loop
dim daysInMonth '// the number of days in each month
dim strMonth '// the selected month
intDay = 1 '// set the value to 1 to start
strMonth = request("month") '// set the month to the one selected in the form
If strMonth <> "" Then '// If a month has been selected display the results
'// assign the number of days to each month
Select Case strMonth
Case "January", "March", "May", "July", "August", "October", "December"
daysInMonth = 31
Case "February"
daysInMonth = 28
Case Else
daysInMonth = 30
End Select
'// Display the total number of days in the selected month
Response.Write "The days of " & strMonth & " are "
'// Then loop through the days in the month, starting at 1
Do While intDay <= daysInMonth
Response.Write intDay & ", "
intDay = intDay + 1
Loop
Else '// there has been no month selected so....
' do nothing
End If
%>