DateFilter.php

<?php

namespace App\Nova\Filters;

use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Container\Container;
use Laravel\Nova\Filters\DateFilter as NovaDateFilter;

class DateFilter extends NovaDateFilter
{
    public $column;

    public function __construct($name, $column)
    {
        $this->name = $name;
        $this->column = $column;
    }

    /**
     * Get the key for the filter.
     *
     * @return string
     */
    public function key()
    {
        return "date_filter_{$this->column}";
    }

    /**
     * Apply the filter to the given query.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Illuminate\Database\Eloquent\Builder  $query
     * @param  mixed  $value
     * @return \Illuminate\Database\Eloquent\Builder
     */
    public function apply(Request $request, $query, $value)
    {
        if ($this->column == 'created_at') {
            $query->where($this->column, '<', Carbon::parse($value));
        }

        if ($this->column == 'updated_at') {
            $query->where($this->column, '>', Carbon::parse($value));
        }

        return $query;
    }
}

Thanks, this will be helpful to not have to make many versions of a class just to replace "<", "<=", etc...