{"id":14326,"date":"2020-08-27T18:35:58","date_gmt":"2020-08-27T18:35:58","guid":{"rendered":"https:\/\/alexrusin.com\/?p=14326"},"modified":"2020-08-27T18:40:05","modified_gmt":"2020-08-27T18:40:05","slug":"exporting-records-with-timezone-adjustments","status":"publish","type":"post","link":"https:\/\/blog.alexrusin.com\/exporting-records-with-timezone-adjustments\/","title":{"rendered":"Exporting Records with Timezone Adjustments"},"content":{"rendered":"\n<p>As a rule, dates in a database are stored in UTC.  So, when you export records from database constrained by dates, it is a good idea to use appropriate timezone in export query.  You can do it in one of two ways.  One way is create incoming dates in user&#8217;s timezone, then covert time to UTC and query the database.  Another way is to convert database column (created_at) to the users timezone and query against it.  <\/p>\n\n\n\n<p>The first approach.  First we need to convert time coming to us from the user into the UTC.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"php\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$startAtUtc = (new Carbon($this->request->input('start_at'), $this->timezone))->startOfDay()->setTimezone('UTC');\n        $endAtUtc = (new Carbon($this->request->input('end_at'), $this->timezone))->startOfDay()->setTimezone('UTC');\n        $query = Orders::whereBetween('created_at', [$startAtUtc, $endAtUtc]);<\/pre>\n\n\n\n<p>Resulting query will look like so:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Start at UTC: 2020-07-14 07:00:00\nEnd at UTC: 2020-08-27 07:00:00\nExport query: select * from `orders` where `created_at` between ? and ?<\/pre>\n\n\n\n<p>The second approach. First we need to get timezone offset and then we do the query.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"php\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$timezoneOffset = Carbon::now()->setTimezone($this->timezone)->format('P');\n\n        $query = Orders::whereRaw(\"convert_tz(created_at, '+00:00','\" . $timezoneOffset . \"') between '\" . (new Carbon($this->request->input('start_at'), $this->timezone))->startOfDay() . \"' and '\" . (new Carbon($this->request->input('end_at'), $this->timezone))->startOfDay() . \"'\"\n        );\n       $query->toSql();<\/pre>\n\n\n\n<p>This is how the query will look like:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">select * from `orders` where convert_tz(created_at, '+00:00','-07:00') between '2020-07-27 00:00:00' and '2020-08-27 00:00:00' <\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As a rule, dates in a database are stored in UTC. So, when you export records from database constrained by dates, it is a good idea to use appropriate timezone in export query. You can do it in one of two ways. One way is create incoming dates in user&#8217;s timezone, then covert time to&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[12,10],"tags":[],"class_list":["post-14326","post","type-post","status-publish","format-standard","hentry","category-laravel","category-php-mysql-development"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exporting Records with Timezone Adjustments | Alex Rusin Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.alexrusin.com\/exporting-records-with-timezone-adjustments\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exporting Records with Timezone Adjustments | Alex Rusin Blog\" \/>\n<meta property=\"og:description\" content=\"As a rule, dates in a database are stored in UTC. 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