NowAction

NowAction.php

<?php

namespace ...

use Filament\Forms\Components\Actions\Action;
use Filament\Forms\Components\DateTimePicker;
use Filament\Forms\Set;

class NowAction extends Action
{
    protected function setUp(): void
    {
        $this
            ->label(__'Now'))
            ->icon('heroicon-o-clock')
            ->action(function (DateTimePicker $component, Set $set) {
                $set($component->getName(), now()->format($component->getFormat()));
            });
    }
}

// usage

DatePicker::make('published_at')
    ->suffixAction(NowAction::make('now_published_at')):