根据@digitalbath的答案，下面是一个小函数，用于获取UTC时间戳，并在给定的DOM元素中显示本地时间(最后一部分使用jQuery):

https://jsfiddle.net/moriz/6ktb4sv8/1/

<div id="eventTimestamp" class="timeStamp">
   </div>
   <script type="text/javascript">
   // Convert UTC timestamp to local time and display in specified DOM element
   function convertAndDisplayUTCtime(date,hour,minutes,elementID) {
    var eventDate = new Date(''+date+' '+hour+':'+minutes+':00 UTC');
    eventDate.toString();
    $('#'+elementID).html(eventDate);
   }
   convertAndDisplayUTCtime('06/03/2015',16,32,'eventTimestamp');
   </script>

在javascript中将字符串转换为日期之前，将'UTC'附加到字符串中:

var date = new Date('6/29/2011 4:52:48 PM UTC');
date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)"

我创建了一个函数，将所有时区转换为本地时间。

我没有使用getTimezoneOffset()，因为它没有返回适当的偏移值

要求:

1. npm i moment-timezone

function utcToLocal(utcdateTime, tz) {
    var zone = moment.tz(tz).format("Z") // Actual zone value e:g +5:30
    var zoneValue = zone.replace(/[^0-9: ]/g, "") // Zone value without + - chars
    var operator = zone && zone.split("") && zone.split("")[0] === "-" ? "-" : "+" // operator for addition subtraction
    var localDateTime
    var hours = zoneValue.split(":")[0]
    var minutes = zoneValue.split(":")[1]
    if (operator === "-") {
        localDateTime = moment(utcdateTime).subtract(hours, "hours").subtract(minutes, "minutes").format("YYYY-MM-DD HH:mm:ss")
    } else if (operator) {
        localDateTime = moment(utcdateTime).add(hours, "hours").add(minutes, "minutes").format("YYYY-MM-DD HH:mm:ss")
    } else {
        localDateTime = "Invalid Timezone Operator"
    }
    return localDateTime
}

utcToLocal("2019-11-14 07:15:37", "Asia/Kolkata")

//Returns "2019-11-14 12:45:37"

@Adorojan的回答几乎是正确的。但是添加偏移量是不正确的，因为如果浏览器日期在GMT之前，偏移量值将为负，反之亦然。 下面是我的解决方案，对我来说是完美的:

// Input time in UTC var inputInUtc = "6/29/2011 4:52:48"; var dateInUtc = new Date(Date.parse(inputInUtc+" UTC")); //Print date in UTC time document.write("Date in UTC : " + dateInUtc.toISOString()+"<br>"); var dateInLocalTz = convertUtcToLocalTz(dateInUtc); //Print date in local time document.write("Date in Local : " + dateInLocalTz.toISOString()); function convertUtcToLocalTz(dateInUtc) { //Convert to local timezone return new Date(dateInUtc.getTime() - dateInUtc.getTimezoneOffset()*60*1000); }

以下是基于Adorjan Princ的回答的简化解决方案:

function convertUTCDateToLocalDate(date) {
    var newDate = new Date(date);
    newDate.setMinutes(date.getMinutes() - date.getTimezoneOffset());
    return newDate;
}

或者更简单(尽管它会改变原始日期):

function convertUTCDateToLocalDate(date) {
    date.setMinutes(date.getMinutes() - date.getTimezoneOffset());
    return date;
}

用法:

var date = convertUTCDateToLocalDate(new Date(date_string_you_received));

在最后添加时区，在本例中是'UTC':

theDate = new Date( Date.parse('6/29/2011 4:52:48 PM UTC'));

之后，使用toLocale()*函数族以正确的地区显示日期

theDate.toLocaleString();  // "6/29/2011, 9:52:48 AM"
theDate.toLocaleTimeString();  // "9:52:48 AM"
theDate.toLocaleDateString();  // "6/29/2011"