Unable to reproduce this issue on reported version 64.0.3282.167 using Ubuntu 14.04 and Ubuntu 17.10 with steps mentioned below. 

1. Launched 64.0.3282.167 chromium and opened Incognito window.
2. Navigated to http://tweetdeck.twitter.com and logged in with valid credentials -- login worked successfully. Attaching screencast for reference.

As ET team do not have Ubuntu 16.04, could someone from Inhouse team please help in triaging this issue further. Hence adding TE-NeedsTriageFromHYD label.

Thanks!

Attaching screencast for reference.

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I've made an screencast to show how Chromium fails. BTW, the same version of Google Chrome fails in the same way. Maybe the problem is related with Ubuntu?

I think the problem is related with timezone strings, but I don't know if it is thrown by Chromium, TweetDeck or Ubuntu (I've tried to change TZ name in Ubuntu, either to UTC and other names, but the problem persists).

TweetDeck works well in Firefox, either in Linux and Windows. In Google Chrome in Windows (same version) this problem is not raised.

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Unbale to reproduce the issue on Debian Rodete with chromium #64.0.3282.0, able to login to  http://tweetdeck.twitter.com successfully.

Attaching the screen-cast for reference

Note: Since TE doesn't able to reproduce this issue adding TE-NeedsTriageHelp label

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	819571.mp4 857 KB View Download

Function that fails is "toLocaleTimeString()" from "Date" class. Specific function call is:

console.log(new Date("2018-03-13 16:04:00+00:00").toLocaleTimeString("es-ES"));

Minimum example that fails is attached. It fails both in Chromium and Chrome 64.0.3282.167 (V8 version is 6.4.388.45) in Ubuntu 16.04.4 x86_64 with Unity Desktop. It doesn't fail in Firefox.

Error shown (from developers tools console) is:

timezone.html:6 Uncaught RangeError: Unsupported time zone specified undefined
    at new DateTimeFormat (native)
    at Date.toLocaleTimeString (native)
    at file:///home/user/Desktop/timezone.html:6:128
(anonymous) @ timezone.html:6

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timezone.html 247 bytes View Download

Finally I've found how to reproduce the error:

1. Open a terminal and set TZ variable to ":/etc/localtime" using "export TZ=':/etc/localtime'" (this is to avoid unnecessary system calls according to this page: https://blog.packagecloud.io/eng/2017/02/21/set-environment-variable-save-thousands-of-system-calls/ ).

2. Open Chrome or Chromium from that terminal (launch 'google-chrome' or 'chromium-browser').

3. Try to login in TweetDeck.

4. The error above is shown.

Hello again.

Has someone reviewed this issue?

As I stated in the previous comment, I've finally been able to reproduce it.

Can confirm that it's reproducible and still prevents logging in to TweetDeck.

*** Mass UI Triage *** 

We were unable to find repro steps for this bug. If you have more data to
reproduce this bug or have clear repro steps, please reopen or file a new issue.

Thanks!