Carbon with Only Hours

If you want to have a current date without seconds and/or minutes, use Carbon's methods like setSeconds(0) or setMinutes(0).

// 2020-04-20 08:12:34
echo now();
 
// 2020-04-20 08:12:00
echo now()->setSeconds(0);
 
// 2020-04-20 08:00:00
echo now()->setSeconds(0)->setMinutes(0);
 
// Another way - even shorter
echo now()->startOfHour();