echo date_default_timezone_get(); // PRC

echo date("Y-m-d\TH:i:s\Z",time()) //2017-12-11T11:43:53Z

这段代码和下边代码输出时间一致

$now = new \DateTime();

$now->setTimezone(new \DateTimeZone('UTC'));

echo $now->format("Y-m-d\TH:i:s\Z"); //2017-12-11T11:43:53Z

那么 $now->setTimezone(new DateTimeZone('UTC')); 设置无效？

在线上服务器 运行是正常的 UTC时间差8小时。 在docker中运行输出结果就一至。对比了php.ini 设置，都一致。

server1:

date/time support => enabled

"Olson" Timezone Database Version => 0.system

Timezone Database => internal

Default timezone => PRC

Directive => Local Value => Master Value

date.default_latitude => 31.7667 => 31.7667

date.default_longitude => 35.2333 => 35.2333

date.sunrise_zenith => 90.583333 => 90.583333

date.sunset_zenith => 90.583333 => 90.583333

date.timezone => PRC => PRC

server2:

date/time support => enabled

"Olson" Timezone Database Version => 0.system

Timezone Database => internal

Default timezone => PRC

Directive => Local Value => Master Value

date.default_latitude => 31.7667 => 31.7667

date.default_longitude => 35.2333 => 35.2333

date.sunrise_zenith => 90.583333 => 90.583333

date.sunset_zenith => 90.583333 => 90.583333

date.timezone => PRC => PRC

============ 补充，系统时间======

server1:

[root@60d882aec15f /]# timedatectl

Failed to create bus connection: No such file or directory

[root@60d882aec15f /]# date

Mon Dec 11 12:02:29 CST 2017

[root@60d882aec15f /]# date -u

Mon Dec 11 04:02:31 UTC 2017

server2:

[root@iZ8vbai4lhy4q1u5qhbenwZ ~]# timedatectl

Local time: Mon 2017-12-11 12:18:47 CST

Universal time: Mon 2017-12-11 04:18:47 UTC

RTC time: Mon 2017-12-11 12:18:47

Time zone: Asia/Shanghai (CST, +0800)

NTP enabled: no

NTP synchronized: yes

RTC in local TZ: yes

DST active: n/a