問題描述
我使用 Moment.js 和 Moment-Timezone 框架，并且有一個 Moment.js 日期對象，該對象明確使用 UTC 時區.如何將其轉換為瀏覽器的當前時區?
I use the Moment.js and Moment-Timezone frameworks, and have a Moment.js date object which is explicitly in UTC timezone. How can I convert that to the current timezone of the browser?
var testDateUtc = moment.tz("2015-01-30 10:00:00", "UTC");var localDate = ???
所以如果我能找出用戶的本地時區就好了；或者，我想將日期對象轉換為另一個只使用本地時區"的數據對象，無論它實際上是什么.
So it would be fine if I could find out the users local time zone; or alternatively I'd like to convert the date object into another data object which just uses the "local timezone", no matter what that actually is.
推薦答案
您不需要為此使用 moment-timezone.主要的 moment.js 庫具有使用 UTC 和本地時區的完整功能.
You do not need to use moment-timezone for this. The main moment.js library has full functionality for working with UTC and the local time zone.
var testDateUtc = moment.utc("2015-01-30 10:00:00");
var localDate = moment(testDateUtc).local();
從那里您可以使用您可能期望的任何功能:
From there you can use any of the functions you might expect:
var s = localDate.format("YYYY-MM-DD HH:mm:ss");
var d = localDate.toDate();
// etc...
請注意，通過將 testDateUtc(它是一個 moment 對象)傳回 moment() 構造函數，它會創建一個 克隆.否則，當您調用 .local() 時，它也會更改 testDateUtc 值，而不僅僅是 localDate 值.時刻是可變的.
Note that by passing testDateUtc, which is a moment object, back into the moment() constructor, it creates a clone. Otherwise, when you called .local(), it would also change the testDateUtc value, instead of just the localDate value. Moments are mutable.
另外請注意，如果您的原始輸入包含時區偏移量，例如 +00:00 或 Z，那么您可以直接使用 moment 解析它.您不需要使用 .utc 或 .local.例如:
Also note that if your original input contains a time zone offset such as +00:00 or Z, then you can just parse it directly with moment. You don't need to use .utc or .local. For example:
var localDate = moment("2015-01-30T10:00:00Z");
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