tzselect
Selected time is now: Fri Jun 22 09:09:59 CEST 2018.
Universal Time is now: Fri Jun 22 07:09:59 UTC 2018.

/etc/apache2/conf-available/zabbix.conf
<IfModule mod_php5.c>
 php_value max_execution_time 300
 php_value memory_limit 128M
 php_value post_max_size 16M
 php_value upload_max_filesize 2M
 php_value max_input_time 300
 php_value always_populate_raw_post_data -1
 php_value date.timezone Europe/Berlin
 </IfModule>
 <IfModule mod_php7.c>
 php_value max_execution_time 300
 php_value memory_limit 128M
 php_value post_max_size 16M
 php_value upload_max_filesize 2M
 php_value max_input_time 300
 php_value always_populate_raw_post_data -1
 php_value date.timezone Europe/Berlin
 </IfModule>

/etc/php/7.2/apache2/php.ini
[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = "Europe/Berlin"
 

/etc/php/7.2/cli/php.ini
[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = "Europe/Berlin"

Action - Operation:
 
Problem started at {EVENT.TIME} on {EVENT.DATE}
Problem name: {TRIGGER.NAME}
Host: {HOST.NAME}
Severity: {TRIGGER.SEVERITY}
Original problem ID: {EVENT.ID}
{TRIGGER.URL}