Get AD account expiring in next 30days

Use below code snippet to find list of AD account expiring in next 30days:

GregorianCalendar Win32Epoch = new GregorianCalendar(1601,Calendar.JANUARY,1);

Date Win32EpochDate = Win32Epoch.getTime();

//Note that 1/1/1601 will be returned as a negative value by Java

GregorianCalendar Today = new GregorianCalendar();

Date TodaysDate = Today.getTime();

long TimeSinceWin32Epoch = 10000 * (TodaysDate.getTime() - Win32EpochDate.getTime());

 

Calendar c=new GregorianCalendar();

c.add(Calendar.DATE, 30);

Date dateAfter30Days=c.getTime();

long TimeAfter30DaysSinceWin32Epoch = 10000 * (dateAfter30Days.getTime() - Win32EpochDate.getTime());

 

searchFilter = "(&(objectClass=User)(accountExpires>=" + TimeSinceWin32Epoch + ")(accountExpires<="+ TimeAfter30DaysSinceWin32Epoch+"))";