PHP Decode

<?php

declare(strict_types=1);

// Excel DateTimeStamp  Result            Comments
return [
    // PHP 32-bit Earliest Date 14-Dec-1901
    [
        -2147472000,
        714,
    ],
    // 31-Dec-1903
    [
        -2082931200,
        1461,
    ],
    // Excel 1904 Calendar Base Date 01-Jan-1904
    [
        -2082844800,
        1462,
    ],
    // 02-Jan-1904
    [
        -2082758400,
        1463,
    ],
    // 19-Dec-1960
    [
        -285120000,
        22269,
    ],
    // PHP Base Date 01-Jan-1970
    [
        0,
        25569,
    ],
    // 07-Dec-1982
    [
        408067200,
        30292,
    ],
    // 12-Jun-2008
    [
        1213228800,
        39611,
    ],
    // PHP 32-bit Latest Date 9-Jan-2038
    [
        2147472000,
        50424,
    ],
    // 18-May-1903 13:37:46
    [
        -2102494934,
        1234.56789,
    ],
    // 18-Oct-1933 16:17:37
    [
        -1142494943,
        12345.6789,
    ],
    // 12:00:00
    [
        43200,
        0.5,
    ],
    // 18:00.00
    [
        64800,
        0.75,
    ],
    // 02:57:46
    [
        10666,
        0.12345,
    ],
    // 29-Apr-2038 00:00:00 beyond PHP 32-bit Latest Date
    [
        2156112000,
        50524,
    ],
    [-2147483648, -2147483648 / 86400], // Okay on 64- and 32-bit systems
    [-2147483649, -2147483649 / 86400], // Skipped test on 32-bit
];
 ?>