在 Laravel 6 中，在不更改框架默认时区：Asia/Shanghai 的情况下，日期时间格式调整为 UTC (二)

    /**
     * 转换时区
     *
     * @param $value
     * @return string
     */
    private function transTz($value = null): string
    {
        return now()->utc()->toDateTimeString();
    }

update `table` set `deleted_at` = '2023-01-12 11:19:17' where `id` = 534

    /**
     * 设置删除时间
     *
     * @param $value
     * @return void
     */
    public function setDeletedAtAttribute($value)
    {
        $this->attributes['deleted_at'] = $value ? now()->utc()->toDateTimeString() : $value;
    }

update `table` set `deleted_at` = '2023-01-12 16:05:00' where `id` = 531

$time = $this->freshTimestamp();

$time = Date::now('UTC');

update `table` set `deleted_at` = '2023-01-12 08:09:02' where `id` = 534

use Illuminate\Database\Eloquent\SoftDeletes;

class ThemeInstallation extends Model
{
    use SoftDeletes;



    /**
     * Perform the actual delete query on this model instance.
     *
     * @return void
     */
    protected function runSoftDelete()
    {
        $query = $this->setKeysForSaveQuery($this->newModelQuery());

        $time = Date::now('UTC');

        $columns = [$this->getDeletedAtColumn() => $this->fromDateTime($time)];
        file_put_contents(storage_path() . '/logs/SoftDeletes.runSoftDelete-' . microtime(true) . '-' . mt_rand()  . '.txt', print_r($time, true), FILE_APPEND | LOCK_EX);

        $this->{$this->getDeletedAtColumn()} = $time;

        if ($this->timestamps && ! is_null($this->getUpdatedAtColumn())) {
            $this->{$this->getUpdatedAtColumn()} = $time;

            $columns[$this->getUpdatedAtColumn()] = $this->fromDateTime($time);
        }

        $query->update($columns);

        $this->syncOriginalAttributes(array_keys($columns));
    }
}

<pre class="wp-block-syntaxhighlighter-code">

<?php

namespace App\Traits;

use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Facades\Date;

trait UtcSoftDeletes
{
    use SoftDeletes;

    /**
     * Perform the actual delete query on this model instance.
     *
     * @return void
     */
    protected function runSoftDelete()
    {
        $query = $this->setKeysForSaveQuery($this->newModelQuery());

        $time = Date::now('UTC');

        $columns = [$this->getDeletedAtColumn() => $this->fromDateTime($time)];

        $this->{$this->getDeletedAtColumn()} = $time;

        if ($this->timestamps && ! is_null($this->getUpdatedAtColumn())) {
            $this->{$this->getUpdatedAtColumn()} = $time;

            $columns[$this->getUpdatedAtColumn()] = $this->fromDateTime($time);
        }

        $query->update($columns);

        $this->syncOriginalAttributes(array_keys($columns));
    }
}


</pre>