Mastodon: Timezone of single toot display

[yookoala]

Example,

• https://mastodon.hk/@inmediahk/23687

The status is published at 17th April, 2017 09:13 UTC. Which is 17th April, 2017 17:13 HKT. The time displayed in timeline is (left) following the browser's timezone, while the single toot display (right) is showing UTC.

The behaviour is inconsistent. It would be easier for visitor to understand if either,

1. The time always follow the user's browser (with JS rewrite the "time" on load?); or
2. The time in single toot display also show a timezone string; or
3. Have an administrator option to set a default for the instance

Discovered by @chainsawriot in this post

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• [x] I searched or browsed the repo’s other issues to ensure this is not a duplicate.
• [ ] This bug happens on a tagged release and not on master (If you're a user, don't worry about this).

[mjankowski]

We should probably publish utc times to pages, and let client js override with local/browser tz.