<!-- THEME DEBUG -->
<!-- THEME HOOK: 'field' -->
<!-- FILE NAME SUGGESTIONS:
   ▪️ field--node--title--article.html.twig
   ✅ field--node--title.html.twig
   ▪️ field--node--article.html.twig
   ▪️ field--title.html.twig
   ▪️ field--string.html.twig
   ▪️ field.html.twig
-->
<!-- BEGIN OUTPUT from 'themes/contrib/classy/templates/field/field--node--title.html.twig' -->
<span class=Set date field of node to current time ">

Set date field of node to current time

// Set the current date and time.
$node = Node::load(1);
$node->set('field_date', date('Y-m-d', time()));
$node->set('field_datetime', date('Y-m-d\TH:i:s', time()));
$node->set('created', time());
$node->save();