Inconsistent time formatting

Configuration
1

I don’t know if this issue popped up recently or that it is already present longer, but I am seeing a 12 hour time format in the cards in Home-assistant whereas everywhere else I get the 24 hour format that I want. I even tried setting my browser to Dutch, checken Timezone in bother the raspberry and in Home-assistant and everything appears to be OK except for the silly 12 hour format in the cards.

Any tips on how to change this?

Screenshot_20180304-132332
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Screenshot_20180304-132512
Screenshot_20180304-1325121413×1269 290 KB

2

AFAIK the issue is known an related to a recent change in the chart drawing software (was server-side rendering before, is local rendering using chart.js now).