If I needed an exact date, I would do something like the following (python)
>>> import datetime >>> datetime.date.today()-datetime.timedelta(864) datetime.date(2010, 4, 13)
$ date -d '864 days ago' Tue Apr 13 13:46:16 EDT 2010
If I needed an exact date, I would do something like the following (python)
>>> import datetime >>> datetime.date.today()-datetime.timedelta(864) datetime.date(2010, 4, 13)