https://www.onlinetravel.com.ar/general/plugin/dwcalendar/dateformat.js?zxc=1791172715

1
2
3Date.prototype.format = function (format) {
4    var returnStr = '';
5    var replace = Date.replaceChars;
6    for (var i = 0; i < format.length; i++) {
7        var curChar = format.charAt(i);
8        if (i - 1 >= 0 && format.charAt(i - 1) == "\\") {
9            returnStr += curChar;
10        }
11        else if (replace[curChar]) {
12            returnStr += replace[curChar].call(this);
13        } else if (curChar != "\\") {
14            returnStr += curChar;
15        }
16    }
17    return returnStr;
18};
19
20Date.replaceChars = {
21    shortMonths: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
22    longMonths: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
23    shortDays: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
24    longDays: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
25    // Day
26    d: function () {
27        return (this.getDate() < 10 ? '0' : '') + this.getDate();
28    },
29    D: function () {
30        return Date.replaceChars.shortDays[this.getDay()];
31    },
32    j: function () {
33        return this.getDate();
34    },
35    l: function () {
36        return Date.replaceChars.longDays[this.getDay()];
37    },
38    N: function () {
39        return this.getDay() + 1;
40    },
41    S: function () {
42        return (this.getDate() % 10 == 1 && this.getDate() != 11 ? 'st' : (this.getDate() % 10 == 2 && this.getDate() != 12 ? 'nd' : (this.getDate() % 10 == 3 && this.getDate() != 13 ? 'rd' : 'th')));
43    },
44    w: function () {
45        return this.getDay();
46    },
47    z: function () {
48        var d = new Date(this.getFullYear(), 0, 1);
49        return Math.ceil((this - d) / 86400000);
50    }, // Fixed now
51    // Week
52    W: function () {
53        var d = new Date(this.getFullYear(), 0, 1);
54        return Math.ceil((((this - d) / 86400000) + d.getDay() + 1) / 7);
55    }, // Fixed now
56    // Month
57    F: function () {
58        return Date.replaceChars.longMonths[this.getMonth()];
59    },
60    m: function () {
61        return (this.getMonth() < 9 ? '0' : '') + (this.getMonth() + 1);
62    },
63    M: function () {
64        return Date.replaceChars.shortMonths[this.getMonth()];
65    },
66    n: function () {
67        return this.getMonth() + 1;
68    },
69    t: function () {
70        var d = new Date();
71        return new Date(d.getFullYear(), d.getMonth(), 0).getDate()
72    }, // Fixed now, gets #days of date
73    // Year
74    L: function () {
75        var year = this.getFullYear();
76        return (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0));
77    }, // Fixed now
78    o: function () {
79        var d = new Date(this.valueOf());
80        d.setDate(d.getDate() - ((this.getDay() + 6) % 7) + 3);
81        return d.getFullYear();
82    }, //Fixed now
83    Y: function () {
84        return this.getFullYear();
85    },
86    y: function () {
87        return ('' + this.getFullYear()).substr(2);
88    },
89    // Time
90    a: function () {
91        return this.getHours() < 12 ? 'am' : 'pm';
92    },
93    A: function () {
94        return this.getHours() < 12 ? 'AM' : 'PM';
95    },
96    B: function () {
97        return Math.floor((((this.getUTCHours() + 1) % 24) + this.getUTCMinutes() / 60 + this.getUTCSeconds() / 3600) * 1000 / 24);
98    }, // Fixed now
99    g: function () {
100        return this.getHours() % 12 || 12;
101    },
102    G: function () {
103        return this.getHours();
104    },
105    h: function () {
106        return ((this.getHours() % 12 || 12) < 10 ? '0' : '') + (this.getHours() % 12 || 12);
107    },
108    H: function () {
109        return (this.getHours() < 10 ? '0' : '') + this.getHours();
110    },
111    i: function () {
112        return (this.getMinutes() < 10 ? '0' : '') + this.getMinutes();
113    },
114    s: function () {
115        return (this.getSeconds() < 10 ? '0' : '') + this.getSeconds();
116    },
117    u: function () {
118        var m = this.getMilliseconds();
119        return (m < 10 ? '00' : (m < 100 ?
120                '0' : '')) + m;
121    },
122    // Timezone
123    e: function () {
124        return "Not Yet Supported";
125    },
126    I: function () {
127        var DST = null;
128        for (var i = 0; i < 12; ++i) {
129            var d = new Date(this.getFullYear(), i, 1);
130            var offset = d.getTimezoneOffset();
131
132            if (DST === null)
133                DST = offset;
134            else if (offset < DST) {
135                DST = offset;
136                break;
137            } else if (offset > DST)
138                break;
139        }
140        return (this.getTimezoneOffset() == DST) | 0;
141    },
142    O: function () {
143        return (-this.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(this.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() / 60)) + '00';
144    },
145    P: function () {
146        return (-this.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(this.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() / 60)) + ':00';
147    }, // Fixed now
148    T: function () {
149        var m = this.getMonth();
150        this.setMonth(0);

151        var result = this.toTimeString().replace(/^.+ \(?([^\)]+)\)?$/, '$1');
152        this.setMonth(m);
153        return result;
154    },
155    Z: function () {
156        return -this.getTimezoneOffset() * 60;
157    },
158    // Full Date/Time
159    c: function () {
160        return this.format("Y-m-d\\TH:i:sP");
161    }, // Fixed now
162    r: function () {
163        return this.toString();
164    },
165    U: function () {
166        return this.getTime() / 1000;
167    }
168};