UTC 日期/时间字符串到时区

发布于 2024-11-02 10:47:22 字数 105 浏览 4 评论 0原文

如何将 UTC 日期/时间字符串(例如 2011-01-01 15:00:00)转换为 php 支持的任何给定时区,例如 America/New_York 或 Europe/San_Marino。

How do I convert a date/time string (e.g. 2011-01-01 15:00:00) that is UTC to any given timezone php supports, such as America/New_York, or Europe/San_Marino.

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画离情绘悲伤 2024-11-09 10:47:22

PHP 的 DateTime 对象非常灵活。

$UTC = new DateTimeZone("UTC");
$newTZ = new DateTimeZone("America/New_York");
$date = new DateTime( "2011-01-01 15:00:00", $UTC );
$date->setTimezone( $newTZ );
echo $date->format('Y-m-d H:i:s');

PHP's DateTime object is pretty flexible.

$UTC = new DateTimeZone("UTC");
$newTZ = new DateTimeZone("America/New_York");
$date = new DateTime( "2011-01-01 15:00:00", $UTC );
$date->setTimezone( $newTZ );
echo $date->format('Y-m-d H:i:s');
圈圈圆圆圈圈 2024-11-09 10:47:22

PHP 的 DateTime 对象非常灵活。

由于用户要求多个时区选项,因此您可以将其设为通用。

通用函数

function convertDateFromTimezone($date,$timezone,$timezone_to,$format){
 $date = new DateTime($date,new DateTimeZone($timezone));
 $date->setTimezone( new DateTimeZone($timezone_to) );
 return $date->format($format);
}

用法:

echo  convertDateFromTimezone('2011-04-21 13:14','UTC','America/New_York','Y-m-d H:i:s');

输出:

2011-04-21 09:14:00

PHP's DateTime object is pretty flexible.

Since the user asked for more than one timezone option, then you can make it generic.

Generic Function

function convertDateFromTimezone($date,$timezone,$timezone_to,$format){
 $date = new DateTime($date,new DateTimeZone($timezone));
 $date->setTimezone( new DateTimeZone($timezone_to) );
 return $date->format($format);
}

Usage:

echo  convertDateFromTimezone('2011-04-21 13:14','UTC','America/New_York','Y-m-d H:i:s');

Output:

2011-04-21 09:14:00

浪推晚风 2024-11-09 10:47:22

假设 UTC 不包含在字符串中,则:

date_default_timezone_set('America/New_York');
$datestring = '2011-01-01 15:00:00';  //Pulled in from somewhere
$date = date('Y-m-d H:i:s T',strtotime($datestring . ' UTC'));
echo $date;  //Should get '2011-01-01 10:00:00 EST' or something like that

或者您可以使用 DateTime 对象。

Assuming the UTC is not included in the string then:

date_default_timezone_set('America/New_York');
$datestring = '2011-01-01 15:00:00';  //Pulled in from somewhere
$date = date('Y-m-d H:i:s T',strtotime($datestring . ' UTC'));
echo $date;  //Should get '2011-01-01 10:00:00 EST' or something like that

Or you could use the DateTime object.

幸福还没到 2024-11-09 10:47:22
function _settimezone($time,$defaultzone,$newzone)
{
$date = new DateTime($time, new DateTimeZone($defaultzone));
$date->setTimezone(new DateTimeZone($newzone));
$result=$date->format('Y-m-d H:i:s');
return $result;
}

$defaultzone="UTC";
$newzone="America/New_York";
$time="2011-01-01 15:00:00";
$newtime=_settimezone($time,$defaultzone,$newzone);
function _settimezone($time,$defaultzone,$newzone)
{
$date = new DateTime($time, new DateTimeZone($defaultzone));
$date->setTimezone(new DateTimeZone($newzone));
$result=$date->format('Y-m-d H:i:s');
return $result;
}

$defaultzone="UTC";
$newzone="America/New_York";
$time="2011-01-01 15:00:00";
$newtime=_settimezone($time,$defaultzone,$newzone);
z祗昰~ 2024-11-09 10:47:22

通用标准化函数可将任何时区的任何时间戳格式化为其他时区。
对于在关系数据库中存储来自不同时区的用户的日期时间戳非常有用。对于数据库比较,将时间戳存储为 UTC 并与 gmdate('Ymd H:i:s') 一起使用

/**
 * Convert Datetime from any given olsonzone to other.
 * @return datetime in user specified format
 */

function datetimeconv($datetime, $from, $to)
{
    try {
        if ($from['localeFormat'] != 'Y-m-d H:i:s') {
            $datetime = DateTime::createFromFormat($from['localeFormat'], $datetime)->format('Y-m-d H:i:s');
        }
        $datetime = new DateTime($datetime, new DateTimeZone($from['olsonZone']));
        $datetime->setTimeZone(new DateTimeZone($to['olsonZone']));
        return $datetime->format($to['localeFormat']);
    } catch (\Exception $e) {
        return null;
    }
}

用法:

$from = ['localeFormat' =>; "d/m/YH:i A", 'olsonZone' => '亚洲/加尔各答'];

$to = ['localeFormat' =>; "Ymd H:i:s", 'olsonZone' => '世界标准时间'];

datetimeconv("14/05/1986 10:45 PM", $from, $to); // 返回“1986-05-14 17:15:00”

General purpose normalisation function to format any timestamp from any timezone to other.
Very useful for storing datetimestamps of users from different timezones in a relational database. For database comparisons store timestamp as UTC and use with gmdate('Y-m-d H:i:s')

/**
 * Convert Datetime from any given olsonzone to other.
 * @return datetime in user specified format
 */

function datetimeconv($datetime, $from, $to)
{
    try {
        if ($from['localeFormat'] != 'Y-m-d H:i:s') {
            $datetime = DateTime::createFromFormat($from['localeFormat'], $datetime)->format('Y-m-d H:i:s');
        }
        $datetime = new DateTime($datetime, new DateTimeZone($from['olsonZone']));
        $datetime->setTimeZone(new DateTimeZone($to['olsonZone']));
        return $datetime->format($to['localeFormat']);
    } catch (\Exception $e) {
        return null;
    }
}

Usage:

$from = ['localeFormat' => "d/m/Y H:i A", 'olsonZone' => 'Asia/Calcutta'];

$to = ['localeFormat' => "Y-m-d H:i:s", 'olsonZone' => 'UTC'];

datetimeconv("14/05/1986 10:45 PM", $from, $to); // returns "1986-05-14 17:15:00"
柳絮泡泡 2024-11-09 10:47:22

怎么样:

$timezone = new DateTimeZone('UTC');
$date = new DateTime('2011-04-21 13:14', $timezone);
echo $date->format;

How about:

$timezone = new DateTimeZone('UTC');
$date = new DateTime('2011-04-21 13:14', $timezone);
echo $date->format;
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