2038 overflows

Adrian (also sent by email):
Re: 2038 issues on mobile platforms.

It is possible to handle 64bit time on 32bit systems. I got disillusioned with the libglib2.0-0 support (GDate) and I already had a library capable of 64bit mathematics (libqof1) so I wrote QofDate and QofTime that can handle true 64bit date and time calculations, formatting and scanning on 32bit or 64bit installations. I estimate that this gives us enough capacity to handle time for a couple of dozen times the age of the universe to nanosecond precision. The maths can also go backwards as far as it can go forwards so it could handle the date of the Big Bang with nanosecond precision too - if anybody actually works that out.

I'll be using this library in Emdebian to provide support for 64bit maths for gpe-expenses and the pre-alpha gpe-cash (stripped out gnucash for embedded devices) so at least your financial records will be safe.
http://cashutil.sourceforge.net/gpecash.php
http://gpe-expenses.sourceforge.net/

"QofTime is a lot like the unix 'struct timespec' except that it uses a
64-bit signed int to store the seconds. This should adequately cover
dates in the distant future as well as the distant past, as long as
these are not more than a couple of dozen times the age of the
universe. Values of this type can range from -9,223,372,036,854,775,808
to 9,223,372,036,854,775,807."

http://qof.sourceforge.net/doxy/group__QOFTIME.html#gb93e930907d0e2eba07b1fa7496e7822
http://qof.sourceforge.net/doxy/group__QOFTIME.html

QofTime is defined as 64bit on all systems and will not overflow until
the year 292,471,208,679 (not counting leap years). i.e. approx.
9223372036854775808 / (60*60*24*365). This also means that some values
of QofTime cannot be converted to a time_t on systems where time_t is
defined as 32bit.

http://qof.sourceforge.net/doxy/group__Date.html

A QofDate is theoretically able to go forward to the year
292,471,206,707 AD and back to the year 292,471,206,708 BC. Whether
such dates actually exist is outside the scope of this documentation.

http://packages.debian.org/sid/libqof-doc
http://packages.debian.org/sid/libqof1