如何在jQuery datetimepicker中获取utc时间

我正在使用尝试此jQuery datetimepicker来获取日期和时间数据。 我能够得到大部分的东西（格式，显示等）。 但是，我无法以UTC格式获取日期和时间。 我只能以本地格式获取日期和时间。

有谁知道如何修改它来获取日期和时间？ 或删除弹出窗口中的“现在”按钮？

Answer 1

我今天遇到了同样的问题，并找到了这个旧线程。 单击“立即”按钮时，可以覆盖$ .datepicker._gotoToday以使用UTC时间。

//make the now button go to "now" in utc, not local $.datepicker._gotoToday = function(id) { var inst = this._getInst($(id)[0]), $dp = inst.dpDiv; this._base_gotoToday(id); var tp_inst = this._get(inst, 'timepicker'); //removed -> selectLocalTimeZone(tp_inst); var now = new Date(); var now_utc = new Date(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate(), now.getUTCHours(), now.getUTCMinutes(), now.getUTCSeconds()); this._setTime(inst, now_utc); $('.ui-datepicker-today', $dp).click(); }; 

Answer 2

如果没有任何额外的库，您可以使用下面的实用程序方法执行以下操作：

 var dateFromPicker = getDateFromPicker(); var dateUtc = localAsUtc(dateFromPicker); var iso = dateUtc.toISOString(); // returns "2016-12-06T00:00:00.000Z" 

 /** * WARNING: This method should only be used in conjunction with components that handle local dates (ie date pickers). * * Returns a local date constructed from a UTC date (shifts the time by the local time zone). Eg: * 
2016-01-01T00:00Z (UTC) -> 2016-01-01T00:00-0100 (CVT) * 
2016-01-01T00:00Z (UTC) -> 2016-01-01T00:00+0100 (CET) * 
 * @param date a date in UTC time zone * @returns {Date} the same date & time in the local time zone */ function utcAsLocal(date) { if (isNotValidDate(date)) { return null; } return new Date( date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(), date.getUTCMilliseconds() ); } /** * WARNING: This method should only be used in conjunction with components that handle local dates (ie date pickers). * * Returns a UTC date constructed from a local date (shifts the time by the local time zone). Eg: * 
2016-01-01T00:00-0100 (CVT) -> 2016-01-01T00:00Z (UTC) * 
2016-01-01T00:00+0100 (GMT) -> 2016-01-01T00:00Z (UTC) * 
 * @param date a date in UTC time zone * @returns {Date} the same date & time in the UTC time zone */ function localAsUtc(date) { if (isNotValidDate(date)) { return null; } return new Date(Date.UTC( date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds() )); } function isValidDate (date) { return !isNotValidDate(date); } function isNotValidDate(date) { return date == null || isNaN(date.getTime()); } 

以下是一些模拟UTC之前和之后时区的示例：

 var date; // simulate a datepicker in (CET) date = new Date("2016-12-06T00:00:00.000+0100"); date.toISOString(); // "2016-12-05T23:00:00.000Z" date = localAsUtc(date); date.toISOString(); // "2016-12-06T00:00:00.000Z" sent to server // simulate a datepicker in (CVT) date = new Date("2016-12-06T00:00:00.000-0100"); date.toISOString(); // "2016-12-06T01:00:00.000Z" date = localAsUtc(date); date.toISOString(); // "2016-12-06T00:00:00.000Z" sent to server // setting the datepicker date (CET) date = new Date("2016-12-06T00:00:00.000Z"); // received from server date.toISOString(); // "2016-12-06T00:00:00.000Z" date = utcAsLocal(date); // set datepicker with this date shows (06/12/2016) date.toISOString(); // "2016-12-05T23:00:00.000Z" // setting the datepicker date (CVT) date = new Date("2016-12-06T00:00:00.000Z"); // received from server date.toISOString(); // "2016-12-06T00:00:00.000Z" date = utcAsLocal(date); // set datepicker with this date shows (06/12/2016) date.toISOString(); // "2016-12-06T01:00:00.000Z"