add 23:59:59 hours to - (assume today is 30-Jul-2013) example range yesterday = 29-Jul-2013 12:00:00 AM + "to" + 30-Jul-2013 23:59:59 PM

add24HoursToDate

// add 23:59:59 hours to - (assume today is 30-Jul-2013) example range yesterday = 29-Jul-2013 12:00:00 AM + "to" + 30-Jul-2013 23:59:59 PM
- (NSDate*)add24HoursToDate:(NSDate*)date {
    NSCalendar *cal = [NSCalendar currentCalendar];
    NSDateComponents *comp = [cal components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:date];
    comp.timeZone=[NSTimeZone defaultTimeZone];
    comp.month = comp.month;
    comp.year = comp.year;
    comp.day = comp.day;
    [comp setHour:23];
    [comp setMinute:59];
    [comp setSecond:59];
    NSDate *modifiedDate = [cal dateFromComponents:comp];
    return modifiedDate;
}