在 javascript 中设置 UTC -5 偏移量

Question

有人知道我将如何修改以下内容以反映 -5 的 UTC 偏移量吗？这是整个功能，所以它可能比实际需要修改的要多。谢谢

    function makeUtcWrapper(d) {

    function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
        sourceObj[sourceMethod] = function() {
            return targetObj[targetMethod].apply(targetObj, arguments);
        };
    };

    var utc = {
        date: d
    };

    // support strftime, if found

    if (d.strftime != undefined) {
        addProxyMethod(utc, "strftime", d, "strftime");
    }

    addProxyMethod(utc, "getTime", d, "getTime");
    addProxyMethod(utc, "setTime", d, "setTime");

    var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"];

    for (var p = 0; p < props.length; p++) {
        addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]);
        addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]);
    }

    return utc;
};

Answer 1

如果 d 应该是一个 Date 对象，你可以这样做：

d.setHours(d.getHours() - 5)

但请注意，这是重复的：How to get UTC offset in javascript (analog of TimeZoneInfo.GetUtcOffset in C#)。