Apple yesterday updated its investor relations page to note that it will announce its earnings for the second fiscal quarter (first calendar quarter) of 2013 on Tuesday, April 23. The earnings release typically occurs just after 4:30 PM Eastern Time following the close of regular stock trading, and the conference call is scheduled to follow at 5:00 PM Eastern / 2:00 PM Pacific. MacRumors will provide running coverage of the earnings release and conference call. The release will provide a look into the strength of iPhone 5 and iPad mini sales into their second quarter of availability amid reports of weakening sales at the company. Apple's stock has taken a bit of a beating in recent months with Goldman Sachs