php UTC 日期/时间字符串到时区
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UTC Date/Time String to Timezone
提问by amax
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.
如何将 UTC 的日期/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。
回答by Kevin Peno
回答by Miguel
PHP's DateTimeobject is pretty flexible.
PHP 的DateTime对象非常灵活。
Since the user asked for more than one timezone option, then you can make it generic.
由于用户要求多个时区选项，因此您可以将其设为通用。
Generic Function
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);
}
Usage:
用法：
echo convertDateFromTimezone('2011-04-21 13:14','UTC','America/New_York','Y-m-d H:i:s');
Output:
输出：
2011-04-21 09:14:00
2011-04-21 09:14:00
回答by Phoenix
Assuming the UTC is not included in the string then:
假设字符串中不包含 UTC，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 $date; //Should get '2011-01-01 10:00:00 EST' or something like that
Or you could use the DateTime object.
或者您可以使用 DateTime 对象。
回答by Gaurav Sharma
function _settimezone($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);
回答by Sandeep
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')
通用标准化函数，用于将任何时间戳从任何时区格式化为其他时区。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('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:
用法：
$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"
$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"
回答by Adnan
How about:
怎么样：
$timezone = new DateTimeZone('UTC');
$date = new DateTime('2011-04-21 13:14', $timezone);
echo $date->format;
