Does UTC observe daylight saving time?

UTC (Coordinated Universal Time) is a standardized time that does not observe daylight saving time (DST). It is often used as a reference time and is equivalent to GMT (Greenwich Mean Time). In PHP, you can use the date_default_timezone_set() function to set the default timezone to UTC.

Example:

Example of using the date_default_timezone_set() function to set the default timezone to UTC in PHP

You can also use the gmdate() function to get the current UTC date and time.

Example of using the gmdate() function to get the current UTC date and time PHP

Note that it's important to have the correct timezone set on the server as well, otherwise, the output of the above function may not be accurate.