does php's date_default_timezone_set adjust to daylight saving?

php date timezone dst
Robin Manoli picture Robin Manoli · Oct 5, 2011 · Viewed 8.8k times · Source

Does php's date_default_timezone_set adjust to daylight saving?

I have this code, and wonder if it will always result in the correct Stockholm time?

  date_default_timezone_set('Europe/Stockholm');
  $timestamp = date("Y-m-d H:i:s");

Answer

Apostolos picture Apostolos · Jun 10, 2017

PHP doesn't handle DST automatically. You have to check

if (date('I', time()) == 1) ... the time is in DST mode ("0" = not)

Then you should adust time accordingly. (Note: 'I' in capital. I have just checked it and it works.)

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