<?php

// Excel DateTimeStamp  Result            Comments
return [
    [714,              -2147472000],    //  PHP 32-bit Earliest Date        14-Dec-1901
    [1461,             -2082931200],    //                                  31-Dec-1903
    [1462,             -2082844800],    //  Excel 1904 Calendar Base Date   01-Jan-1904
    [1463,             -2082758400],    //                                  02-Jan-1904
    [22269,            -285120000],    //                                  19-Dec-1960
    [25569,            0],    //  PHP Base Date                   01-Jan-1970
    [30292,            408067200],    //                                  07-Dec-1982
    [39611,            1213228800],    //                                  12-Jun-2008
    [50424,            2147472000],    //  PHP 32-bit Latest Date          19-Jan-2038
    [1234.56789,       -2102494934],    //                                  18-May-1903 13:37:46
    [12345.6789,       -1142494943],    //                                  18-Oct-1933 16:17:37
    [0.5,              43200],    //                                  12:00:00
    [0.75,             64800],    //                                  18:00.00
    [0.12345,          10666],    //                                  02:57:46
];