<![CDATA[Date format for type="date" input is incorrect]]>I am using Opera 115.0.5322.68 on Linux Mint. If I go to the page https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/date#try_it the input element is showing 07/22/2018
The OS uses d/m/y format and Chrome and FireFox show the date correctly as 22/07/2018.
The only language installed on Opera is English (United Kingdom)
What is causing this, and how to fix?

Thanks
Tim

]]>https://forums.opera.com/topic/75171/date-format-for-type-date-input-is-incorrectRSS for NodeTue, 21 Jul 2026 15:49:10 GMTThu, 05 Dec 2024 13:15:18 GMT60<![CDATA[Reply to Date format for type="date" input is incorrect on Sat, 28 Jun 2025 15:50:19 GMT]]>@TimSchofield There's a worse problem, though. For me, Opera is correctly sending en-AU at the front of the Accept-Language header, in requests it sends to web servers. But it's actually formatting dates as if they're en-US! Web servers are therefore expecting dates in the request data to be formatted the normal way, and get confused by the topsy-turvy US format. This makes Opera unusable on websites that use browser-dependent date inputs, which more and more do these days.

]]>https://forums.opera.com/post/388272https://forums.opera.com/post/388272Sat, 28 Jun 2025 15:50:19 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Tue, 25 Mar 2025 08:41:06 GMT]]>Thanks @burnout426 and @axolos

With a bit of playing around I discovered that the command line switch needed is --lang=en-GB as
--lang=en just gives US format for dates.

Still seems very obscure for ordinary users to know, but thanks for your help.

Tim

]]>https://forums.opera.com/post/381031https://forums.opera.com/post/381031Tue, 25 Mar 2025 08:41:06 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Tue, 25 Mar 2025 01:13:37 GMT]]>@TimSchofield That option isn't available on Linux. You have to use the --lang=code command-line switch on Linux. You can do that in a terminal or modify the shortcut file for Opera to add it. See https://forums.opera.com/post/380391.

Not sure if that will then help with your issue though.

]]>https://forums.opera.com/post/381023https://forums.opera.com/post/381023Tue, 25 Mar 2025 01:13:37 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Mon, 24 Mar 2025 13:28:34 GMT]]>I don't see that option

Screenshot from 2025-03-24 13-27-21.png

]]>https://forums.opera.com/post/380985https://forums.opera.com/post/380985Mon, 24 Mar 2025 13:28:34 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Mon, 24 Mar 2025 12:54:23 GMT]]>It is that one.
You have to though select "Display Opera in this language" and Relaunch:
16439cac-419d-41fe-bb5e-7f6ee8b7e97b-image.png

]]>https://forums.opera.com/post/380979https://forums.opera.com/post/380979Mon, 24 Mar 2025 12:54:23 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Mon, 24 Mar 2025 11:15:06 GMT]]>@axolos
Where have you set this. I have this under settings, but the date is still in mm/dd/YYYY format
Screenshot from 2025-03-24 11-12-39.png

]]>https://forums.opera.com/post/380968https://forums.opera.com/post/380968Mon, 24 Mar 2025 11:15:06 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Mon, 24 Mar 2025 09:46:48 GMT]]>I have found out that the format the date is displayed is governed by the language setting in Opera. After switching the language Opera is displayed in to English (United Kingdom) the format changed to: DD/MM/YYYY. It is still a bit confusing with the slash signs but it works.

]]>https://forums.opera.com/post/380966https://forums.opera.com/post/380966Mon, 24 Mar 2025 09:46:48 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Thu, 20 Mar 2025 12:48:14 GMT]]>I am assuming that either:

  1. Nobody from Opera monitors this forum, or
  2. Nobody from Opera cares about this fairly basic failure to implement the HTML specification.

Both are sad, Opera is a good browser but this makes it unusable for my purposes.

Tim

]]>https://forums.opera.com/post/380734https://forums.opera.com/post/380734Thu, 20 Mar 2025 12:48:14 GMT<![CDATA[Reply to Date format for type="date" input is incorrect on Wed, 15 Jan 2025 11:02:40 GMT]]>@TimSchofield Same here. Trying to find a fix for couple of months now. Without luck.
I am using Opera One(version: 115.0.5322.119) and Opera GX LVL6 (core: 114.0.5282.233) on Windows 10 - both having the same problem.

]]>https://forums.opera.com/post/368575https://forums.opera.com/post/368575Wed, 15 Jan 2025 11:02:40 GMT