Issue

Follow up of T287546: CommRel support for September 2021 Switchover.

During the last maintenance server switch, I checked on translations, and I noticed the base of the Luxembourish translation of the message: this message has two obsolete translations. They both provide a different outdated date and time.

This language, so as others (I see the case with Greek, Hebrew, Marathi...), don't have many translators. To reduce translators' burden, we should have a solution that remains stable, and doesn't requires a new translation each time we change a date or a time.

Possible solution

We can use Tech News' dates system, which has been proven as effective, and can be easily fixed by anyone if a translation is incorrect.

What we add to the source message:
{{#time:<tvar name="defaultformat">j xg</tvar>|<tvar name="date1">2021-09-14</tvar>|<tvar name="format_language_code">{{TRANSLATIONLANGUAGE}}</tvar>}}

What people see when they translate:
{{#time:$defaultformat|$date1|$format_language_code}}
(Looks tricky, but translators are used to it, and this code is used on every translation, meaning we can fix it anytime.)

What readers see:

• in English: 14 September
• In French: 14 septembre
• in Japanese: は9月14日に
• etc.

Next steps

• check if it is possible to add the hour to this date format
• discuss if this solution is the most reasonable one
• apply it before the next server switch