diff --git a/DateTime.cpp b/DateTime.cpp
deleted file mode 100644
index f406ee9..0000000
--- a/DateTime.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-#include "DateTime.h"
-
-
-#include <cstdio>
-#include <ctime>
-#include <cstring>
-
-namespace ProDOS {
-
-/*
- *  date is a 16 bit value:
- *
- *  7 6 5 4 3 2 1 0   7 6 5 4 3 2 1 0 
- * +-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+ 
- * |    Year     |  Month  |   Day   |  
- * +-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+ 
- *
- * time is a 16 bit value:
- *
- *  7 6 5 4 3 2 1 0   7 6 5 4 3 2 1 0 
- * +-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+ 
- * |0 0 0|  Hour   | |0 0|  Minute   | 
- * +-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+ 
- *
- */
-
-
-/*
- * ProDOS technote 28
- *
- * The following definition allows the same range of years that the Apple IIgs
- * Control Panel CDA currently does:
- *
- * o  A seven-bit ProDOS year value is in the range 0 to 99
- * (100 through 127 are invalid)
- * o  Year values from 40 to 99 represent 1940 through 1999
- * o  Year values from 0 to 39 represent 2000 through 2039
- */
-
-
-DateTime::DateTime() :
-    _yymmdd(0), _hhmm(0)
-{
-    init(std::time(NULL));
-}
-
-DateTime::DateTime(uint32_t dtm) :
-    _yymmdd((dtm >> 16) & 0xff), _hhmm(dtm & 0xff)
-{
-}
-
-DateTime::DateTime(unsigned yymmdd, unsigned hhmm) :
-    _yymmdd(yymmdd), _hhmm(hhmm)
-{
-}
-
-DateTime::DateTime(std::time_t time) :
-    _yymmdd(0), _hhmm(0)
-{
-    init(time);
-}
-
-
-DateTime::DateTime(unsigned year, unsigned month, unsigned day,
-        unsigned hour, unsigned minute) :
-    _yymmdd(0), _hhmm(0)
-{
-    init(year, month, day, hour, minute);
-}
-
-void DateTime::init(std::time_t time)
-{
-    tm t;
-    ::localtime_r(&time, &t);
-    init(t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min);
-}
-
-void DateTime::init(unsigned year, unsigned month, unsigned day, unsigned hour, unsigned minute)
-{
-
-    //printf("%d %d %d %d %d\n", year, month, day, hour, minute);
-
-    // 1940 is the earliest year, so clamp to 1940-01-01 00:00
-    if (year < 1940)
-    {
-        _yymmdd = (40 << 9) | (1 << 5) | 1;
-        _hhmm = 0;
-        return;
-    }
-    // 2039 is the latest year, so clamp to 2039-12-31 23:59
-    if (year > 2039)
-    {
-        _yymmdd = (39 << 9) | (12 << 5) | 31;
-        _hhmm = (23 << 8) | 59;
-        return;
-    }
-
-    if (year >= 2000) year -= 2000;
-    else year -= 1900;
-
-    _hhmm = minute | (hour << 8);
-
-    _yymmdd = day | (month << 5) | (year << 9);
-}
-
-unsigned DateTime::year() const
-{
-    unsigned tmp = _yymmdd >> 9;
-    //if (tmp > 100) return 0;
-  
-    if (tmp <= 39) tmp += 100;
-
-    return tmp + 1900;
-}
-
-/*
- * A positive or 0 value for tm_isdst causes mktime() to presume initially
- * that Daylight Savings Time, respectively, is or is not in effect for
- * the specified time. A negative value for tm_isdst causes mktime() to
- * attempt to determine whether Daylight Saving Time is in effect for the
- * specified time.
- */
-
-std::time_t DateTime::toUnix() const
-{
-    tm t;
-
-    if (_yymmdd == 0) return 0;
-
-    std::memset(&t, 0, sizeof(tm));
-
-    t.tm_min = minute();
-    t.tm_hour = hour();
-    t.tm_isdst = -1;
-
-    t.tm_mday = day();
-    t.tm_mon = month() - 1;
-    t.tm_year = year() - 1900;
-
-    return std::mktime(&t);
-    // convert back via locatime & fudge for dst?
-}
-
-} // namespace
diff --git a/DateTime.h b/DateTime.h
deleted file mode 100644
index 9f3aa78..0000000
--- a/DateTime.h
+++ /dev/null
@@ -1,96 +0,0 @@
-#ifndef __PRODOS_DATE_TIME__
-#define __PRODOS_DATE_TIME__
-
-#include <ctime>
-#include <stdint.h>
-
-namespace ProDOS {
-
-class DateTime
-{
-public:
-    DateTime(); 
-    DateTime(std::time_t);
-    DateTime(uint32_t);
-    DateTime(unsigned, unsigned);
-
-    DateTime(unsigned year, unsigned month, unsigned day, 
-        unsigned hour, unsigned minute);
-
-    std::time_t toUnix() const;
-   
-
-    operator std::time_t() const;
-    operator uint32_t() const;
-
-    unsigned date() const;
-    unsigned time() const;
-
-    unsigned minute() const;
-    unsigned hour() const;
-    unsigned day() const;
-    unsigned month() const;
-    unsigned year() const;
-
-private:
-    void init(std::time_t);
-    void init(unsigned, unsigned, unsigned, unsigned, unsigned);
-
-    unsigned _yymmdd;
-    unsigned _hhmm;
-};
-
-
-inline DateTime::operator std::time_t() const
-{
-    return toUnix();
-}
-
-inline DateTime::operator uint32_t() const
-{
-    return (_yymmdd << 16) | _hhmm;
-}
-
-inline unsigned DateTime::date() const 
-{
-    return _yymmdd;
-}
-
-inline unsigned DateTime::time() const
-{
-    return _hhmm;
-}
-
-inline unsigned DateTime::minute() const 
-{
-    return _hhmm & 0x3f;
-}
-
-inline unsigned DateTime::hour() const
-{
-    return (_hhmm >> 8) & 0x1f;
-}
-
-inline unsigned DateTime::day() const
-{
-    return _yymmdd & 0x1f;
-}
-
-inline unsigned DateTime::month() const
-{
-    return (_yymmdd >> 5) & 0x0f;
-}
-
-/*
-inline unsigned DateTime::year() const
-{
-    unsigned tmp = _yymmdd >> 9;
-    if (tmp <= 39) tmp += 100;
-    return tmp + 1900;
-}
-*/
-
-} // namespace
-
-#endif
-