The DAY() function is not affected by SET DATE. It always returns the numeric day of the month.

>It looks as though the Day() function is returning the month! Perhaps you want:
>
>lcWasDate = set('date',1)
>set date to mdy
>d = padl(day(date),2,'0')
>set date to &lcWasDate
>
>
>
>>from date date = 03/21/2001
>>
>>
>> D = day (date)
>>
>>
>> It returns 3
>>
>> How can I return 03
>>
>>
>> Thanks
>>
>> Moisés