程式師世界 >> 編程語言 >> 更多編程語言 >> 編程解疑 >> js-時間換算的問題！！！！！！！！！！！！！！

js-時間換算的問題！！！！！！！！！！！！！！

編輯：編程解疑

時間換算的問題！！！！！！！！！！！！！！: 時間換算一天24個小時比如說2016-12-31 23:50：50 這個加上2小時要變分鐘要變小時變天變月份變年還有就是減的時候 2016-1-1 0：00 減去2小時也要都變我想問的是我下面中的代碼邏輯是不是寫錯了錯在那裡求指導
對了北京時間是utc +8 那 utc+3.5 是小時+3 分鐘 +5 還是+30 還是什麼

在線急等謝謝之前也問過有哥給我寫了另一個簡單方法沒看懂沒弄明白所在又問了一遍

最佳回答：

看我原來的那個帖子，獲取UTC時間字符串，每次計算都要 new 一個新的UTC事件，通過api更新時間對象後在調用方法設置時間，而不是直接操作
d.getUTCHours() + 3
這樣來操作，所以會顯示>24或者<0的情況出現

下面只改了部分，其他沒改的按照寫的示例修改

    function updateDate() {
        var d = new Date();
        var a = d.getUTCHours();
        //UTC時間字符串
        var sUTC = d.getUTCFullYear() + '/' + (d.getUTCMonth() + 1) + '/' + d.getUTCDate() + ' ' + d.getUTCHours() + ':' + d.getUTCMinutes() + ':' + d.getUTCSeconds();
        //世界標准時間
        $("#time").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getUTCHours() + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //當地時間
        $("#time1").val(d.getFullYear() + "年" + (d.getMonth() + 1) + "月" + d.getDate() + "日 " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds());
        //惠靈頓時間
        d = new Date(sUTC)//新UTC時間對象
        d.setHours(d.getHours() + 12);
        //因為是經過UTC計算得到的事件，就不需要在調用getUTCXXXXX這種方法了，直接調用getXXXX
        $("#time2").val(d.getFullYear() + "年" + (d.getMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getHours() + ":" + d.getMinutes() + ":" +d.getSeconds());
        //悉尼時間
        d = new Date(sUTC)//新UTC時間對象
        d.setHours(d.getHours() + 10);
        $("#time3").val(d.getFullYear() + "年" + (d.getMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds());


        ///////////////////////////下面的按照上面的改，分鐘的話用  d.setMinutes(d.getMinutes()+要增加的分鐘數)，看新德裡的那個句
        //東京時間
        $("#time4").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 9) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //北京時間
        $("#time5").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 8) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //曼谷時間
        $("#time6").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 7) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());


        //新德裡時間
        d = new Date(sUTC)//新UTC時間對象
        d.setHours(d.getHours() + 5);
        d.setMinutes(d.getMinutes() + 30);
        $("#time7").val(d.getFullYear() + "年" + (d.getMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds());



        //伊斯蘭堡時間
        $("#time8").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 5) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //德黑蘭時間
        $("#time9").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 3) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //巴格達時間
        $("#time10").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 3) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //耶路撒冷時間
        $("#time11").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 2) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //開普敦時間
        $("#time12").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 2) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //開羅時間
        $("#time13").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 2) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //卡薩布蘭卡時間
        $("#time14").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getUTCHours() + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //莫斯科時間
        $("#time15").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 3) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //雅典時間
        $("#time16").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 2) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //羅馬時間
        $("#time17").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 1) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //柏林時間
        $("#time18").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 1) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //巴黎時間
        $("#time19").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() + 1) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //倫敦時間
        $("#time20").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getUTCHours() + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());


        //渥太華時間
        d = new Date(sUTC);
        d.setHours(d.getHours() - 5);
        $("#time21").val(d.getFullYear() + "年" + (d.getMonth() + 1) + "月" + d.getUTCDate() + "日 " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds());




        //墨西哥城時間
        $("#time22").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() - 6) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //紐約時間
        $("#time23").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() - 5) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //芝加哥時間
        $("#time24").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() - 6) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());
        //洛杉矶時間
        $("#time25").val(d.getUTCFullYear() + "年" + (d.getUTCMonth() + 1) + "月" + d.getUTCDate() + "日 " + (d.getUTCHours() - 8) + ":" + d.getUTCMinutes() + ":" + d.getUTCSeconds());



    }
    window.onload = function () {

        setInterval(updateDate, 1000);
    }

編程解疑