Date is one day off in all my sites

Hello,
I have 5 wordpress sites, running on Webmin server. Running WP 4.2.2
I noticed that time setting in General sections time is ok, but date is one day behind.
I deactivated all the plugins and used default wp themes, but still date is one day behind:
Today is March 17th, but my site date is March 16th
The setting is:
UTC time is 2016-03-16 23:10:01 Local time is 2016-03-16 16:10:01
I set the time in php.ini:

[Date]
; Defines the default timezone used by the date functions
; https://www.php.net/manual/en/datetime.configuration.php#ini.date.timezone
;date.timezone = “America/Los_Angeles”
and also I added date_default_timezone_set(‘America/Los_Angeles’); to the function.php
But I don’t see any difference. Would you please give me some advice?
Thank you in advance.