Adding a time to randomly generated list of dates - php

Question

Down below I am trying to generate an array of dates that meet criteria of Sundays, Mondays, and Thursdays since the year 1990. With those dates, I want to add a time of 7 pm for every Event that is created. Is this possible with the Carbon package?
public function run()
{
$start = Carbon::parse('First Monday of January 1990');
$nextMonth = Carbon::now()->addMonth();
collect([
'monday' => false,
'thursday' => false,
'sunday' => true
])->flatMap(function ($bool, $day) use ($start, $nextMonth) {
return $this->dates($start, $nextMonth, $day, $bool);
})->sort(function ($a, $b) {
return strtotime($a) - strtotime($b);
})->values()->map(function ($date, $key) {
return factory(Event::class)->create([
'name' => 'Event '.($key + 1),
'slug' => 'event'.($key + 1),
'venue_id' => Venue::inRandomOrder()->first()->id,
'date' => $date
]);
})->filter(function ($event) {
return $event->date->lte(Carbon::today()->addWeeks(2));
});
}
protected function dates(Carbon $from, Carbon $to, $day, $last = false)
{
$step = $from->copy()->startOfMonth();
$modification = sprintf($last ? 'last %s of next month' : 'next %s', $day);
$dates = [];
while ($step->modify($modification)->lte($to)) {
$dates[$step->timestamp] = $step->copy();
}
return $dates;
}

Answer 1

To add a time of 7 pm you can use Carbon setter method $date->hour = 19. See http://carbon.nesbot.com/docs/#api-setters