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262 lines
10 KiB
JavaScript
262 lines
10 KiB
JavaScript
function date (format, timestamp) {
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// http://kevin.vanzonneveld.net
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// + original by: Carlos R. L. Rodrigues (http://www.jsfromhell.com)
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// + parts by: Peter-Paul Koch (http://www.quirksmode.org/js/beat.html)
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// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// + improved by: MeEtc (http://yass.meetcweb.com)
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// + improved by: Brad Touesnard
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// + improved by: Tim Wiel
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// + improved by: Bryan Elliott
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//
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// + improved by: Brett Zamir (http://brett-zamir.me)
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// + improved by: David Randall
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// + input by: Brett Zamir (http://brett-zamir.me)
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// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// + improved by: Brett Zamir (http://brett-zamir.me)
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// + improved by: Brett Zamir (http://brett-zamir.me)
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// + improved by: Theriault
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// + derived from: gettimeofday
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// + input by: majak
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// + bugfixed by: majak
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// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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// + input by: Alex
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// + bugfixed by: Brett Zamir (http://brett-zamir.me)
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// + improved by: Theriault
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// + improved by: Brett Zamir (http://brett-zamir.me)
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// + improved by: Theriault
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// + improved by: Thomas Beaucourt (http://www.webapp.fr)
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// + improved by: JT
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// + improved by: Theriault
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// + improved by: Rafał Kukawski (http://blog.kukawski.pl)
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// + input by: Martin
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// + input by: Alex Wilson
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// % note 1: Uses global: php_js to store the default timezone
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// % note 2: Although the function potentially allows timezone info (see notes), it currently does not set
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// % note 2: per a timezone specified by date_default_timezone_set(). Implementers might use
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// % note 2: this.php_js.currentTimezoneOffset and this.php_js.currentTimezoneDST set by that function
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// % note 2: in order to adjust the dates in this function (or our other date functions!) accordingly
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// * example 1: date('H:m:s \\m \\i\\s \\m\\o\\n\\t\\h', 1062402400);
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// * returns 1: '09:09:40 m is month'
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// * example 2: date('F j, Y, g:i a', 1062462400);
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// * returns 2: 'September 2, 2003, 2:26 am'
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// * example 3: date('Y W o', 1062462400);
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// * returns 3: '2003 36 2003'
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// * example 4: x = date('Y m d', (new Date()).getTime()/1000);
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// * example 4: (x+'').length == 10 // 2009 01 09
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// * returns 4: true
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// * example 5: date('W', 1104534000);
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// * returns 5: '53'
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// * example 6: date('B t', 1104534000);
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// * returns 6: '999 31'
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// * example 7: date('W U', 1293750000.82); // 2010-12-31
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// * returns 7: '52 1293750000'
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// * example 8: date('W', 1293836400); // 2011-01-01
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// * returns 8: '52'
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// * example 9: date('W Y-m-d', 1293974054); // 2011-01-02
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// * returns 9: '52 2011-01-02'
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var that = this,
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jsdate, f, formatChr = /\\?([a-z])/gi,
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formatChrCb,
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// Keep this here (works, but for code commented-out
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// below for file size reasons)
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//, tal= [],
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_pad = function (n, c) {
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if ((n = n + '').length < c) {
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return new Array((++c) - n.length).join('0') + n;
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}
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return n;
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},
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txt_words = ["Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
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formatChrCb = function (t, s) {
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return f[t] ? f[t]() : s;
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};
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f = {
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// Day
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d: function () { // Day of month w/leading 0; 01..31
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return _pad(f.j(), 2);
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},
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D: function () { // Shorthand day name; Mon...Sun
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return f.l().slice(0, 3);
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},
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j: function () { // Day of month; 1..31
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return jsdate.getDate();
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},
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l: function () { // Full day name; Monday...Sunday
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return txt_words[f.w()] + 'day';
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},
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N: function () { // ISO-8601 day of week; 1[Mon]..7[Sun]
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return f.w() || 7;
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},
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S: function () { // Ordinal suffix for day of month; st, nd, rd, th
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var j = f.j();
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return j > 4 || j < 21 ? 'th' : {1: 'st', 2: 'nd', 3: 'rd'}[j % 10] || 'th';
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},
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w: function () { // Day of week; 0[Sun]..6[Sat]
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return jsdate.getDay();
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},
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z: function () { // Day of year; 0..365
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var a = new Date(f.Y(), f.n() - 1, f.j()),
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b = new Date(f.Y(), 0, 1);
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return Math.round((a - b) / 864e5) + 1;
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},
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// Week
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W: function () { // ISO-8601 week number
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var a = new Date(f.Y(), f.n() - 1, f.j() - f.N() + 3),
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b = new Date(a.getFullYear(), 0, 4);
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return _pad(1 + Math.round((a - b) / 864e5 / 7), 2);
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},
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// Month
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F: function () { // Full month name; January...December
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return txt_words[6 + f.n()];
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},
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m: function () { // Month w/leading 0; 01...12
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return _pad(f.n(), 2);
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},
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M: function () { // Shorthand month name; Jan...Dec
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return f.F().slice(0, 3);
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},
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n: function () { // Month; 1...12
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return jsdate.getMonth() + 1;
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},
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t: function () { // Days in month; 28...31
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return (new Date(f.Y(), f.n(), 0)).getDate();
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},
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// Year
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L: function () { // Is leap year?; 0 or 1
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return new Date(f.Y(), 1, 29).getMonth() === 1 | 0;
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},
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o: function () { // ISO-8601 year
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var n = f.n(),
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W = f.W(),
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Y = f.Y();
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return Y + (n === 12 && W < 9 ? -1 : n === 1 && W > 9);
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},
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Y: function () { // Full year; e.g. 1980...2010
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return jsdate.getFullYear();
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},
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y: function () { // Last two digits of year; 00...99
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return (f.Y() + "").slice(-2);
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},
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// Time
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a: function () { // am or pm
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return jsdate.getHours() > 11 ? "pm" : "am";
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},
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A: function () { // AM or PM
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return f.a().toUpperCase();
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},
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B: function () { // Swatch Internet time; 000..999
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var H = jsdate.getUTCHours() * 36e2,
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// Hours
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i = jsdate.getUTCMinutes() * 60,
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// Minutes
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s = jsdate.getUTCSeconds(); // Seconds
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return _pad(Math.floor((H + i + s + 36e2) / 86.4) % 1e3, 3);
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},
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g: function () { // 12-Hours; 1..12
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return f.G() % 12 || 12;
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},
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G: function () { // 24-Hours; 0..23
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return jsdate.getHours();
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},
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h: function () { // 12-Hours w/leading 0; 01..12
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return _pad(f.g(), 2);
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},
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H: function () { // 24-Hours w/leading 0; 00..23
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return _pad(f.G(), 2);
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},
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i: function () { // Minutes w/leading 0; 00..59
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return _pad(jsdate.getMinutes(), 2);
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},
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s: function () { // Seconds w/leading 0; 00..59
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return _pad(jsdate.getSeconds(), 2);
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},
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u: function () { // Microseconds; 000000-999000
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return _pad(jsdate.getMilliseconds() * 1000, 6);
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},
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// Timezone
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e: function () { // Timezone identifier; e.g. Atlantic/Azores, ...
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// The following works, but requires inclusion of the very large
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// timezone_abbreviations_list() function.
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/* return this.date_default_timezone_get();
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*/
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throw 'Not supported (see source code of date() for timezone on how to add support)';
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},
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I: function () { // DST observed?; 0 or 1
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// Compares Jan 1 minus Jan 1 UTC to Jul 1 minus Jul 1 UTC.
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// If they are not equal, then DST is observed.
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var a = new Date(f.Y(), 0),
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// Jan 1
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c = Date.UTC(f.Y(), 0),
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// Jan 1 UTC
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b = new Date(f.Y(), 6),
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// Jul 1
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d = Date.UTC(f.Y(), 6); // Jul 1 UTC
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return 0 + ((a - c) !== (b - d));
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},
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O: function () { // Difference to GMT in hour format; e.g. +0200
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var a = jsdate.getTimezoneOffset();
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return (a > 0 ? "-" : "+") + _pad(Math.abs(a / 60 * 100), 4);
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},
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P: function () { // Difference to GMT w/colon; e.g. +02:00
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var O = f.O();
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return (O.substr(0, 3) + ":" + O.substr(3, 2));
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},
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T: function () { // Timezone abbreviation; e.g. EST, MDT, ...
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// The following works, but requires inclusion of the very
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// large timezone_abbreviations_list() function.
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/* var abbr = '', i = 0, os = 0, default = 0;
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if (!tal.length) {
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tal = that.timezone_abbreviations_list();
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}
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if (that.php_js && that.php_js.default_timezone) {
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default = that.php_js.default_timezone;
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for (abbr in tal) {
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for (i=0; i < tal[abbr].length; i++) {
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if (tal[abbr][i].timezone_id === default) {
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return abbr.toUpperCase();
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}
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}
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}
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}
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for (abbr in tal) {
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for (i = 0; i < tal[abbr].length; i++) {
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os = -jsdate.getTimezoneOffset() * 60;
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if (tal[abbr][i].offset === os) {
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return abbr.toUpperCase();
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}
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}
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}
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*/
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return 'UTC';
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},
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Z: function () { // Timezone offset in seconds (-43200...50400)
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return -jsdate.getTimezoneOffset() * 60;
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},
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// Full Date/Time
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c: function () { // ISO-8601 date.
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return 'Y-m-d\\Th:i:sP'.replace(formatChr, formatChrCb);
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},
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r: function () { // RFC 2822
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return 'D, d M Y H:i:s O'.replace(formatChr, formatChrCb);
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},
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U: function () { // Seconds since UNIX epoch
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return jsdate.getTime() / 1000 | 0;
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}
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};
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this.date = function (format, timestamp) {
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that = this;
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jsdate = ((typeof timestamp === 'undefined') ? new Date() : // Not provided
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(timestamp instanceof Date) ? new Date(timestamp) : // JS Date()
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new Date(timestamp * 1000) // UNIX timestamp (auto-convert to int)
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);
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return format.replace(formatChr, formatChrCb);
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};
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return this.date(format, timestamp);
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}
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