This test checks to see what date your Basic Input Output System (BIOS) assumes to be the date after 28th February 2000.
The year 2000 is a leap year, and thus your BIOS should show the date as 29th February 2000.
As the year 1900 was NOT a leap year, it has been alleged by many PC experts that some BIOSs may fail this test due to a miscalculation in the BIOS which assumes that all century years are NOT leap years.
However, in our extensive testing we have yet to see a BIOS exhibit this behaviour.
If your PC fails this test, please contact Greenwich Mean Time, as we would be interested to know of such a case.
To be thorough, we have included this BIOS test, and if you PC does indeed fail this test, we suggest that you contact you PC supplier or manufacturer.
For your information, the year 2000 (described below by the latin term Anno vero MM) was defined as a Leap Year by Pope Gregory XIII on February 24, 1582, in the Inter Gravissimas:
"Deinde, ne in posterum a XII kalendas aprilis aequinoctium recedat, statuimus bissextum quarto quoque anno (uti mos est) continuari debere, praeterquam in centesimis annis; qui, quamvis bissextiles antea semper fuerint, qualem etiam esse volumus annum MDC, post eum tamen qui deinceps consequentur centesimi non omnes bissextiles sint, sed in quadringentis quibusque annis primi quique tres centesimi sine bissexto transigantur, quartus vero quisque centesimus bissextilis sit, ita ut annus MDCC, MDCCC, MDCCCC bissextiles non sint. Anno vero MM, more consueto dies bissextus intercaletur, februario dies XXIX continente, idemque ordo intermittendi intercalandique bissextum diem in quadringentis quibusque annis perpetuo conservetur.
