Today in my new PC I was just using a PHP application and I saw a error that says the following error:

PHP Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function

Then I just figured out that I installed the latest version of PHP manually and in my php.ini file I didn’t tell PHP about my default timezone. Now I just open my php.ini file and uncomment the following line:

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = Asia/Dhaka

I just uncomment the date.timezone line and assign value Asia/Dhaka as default timezone. To see all supported timezone in PHP, click here

Now this strtotime() it is not safe to rely error solution types of error will be solved.