I know there's a possibility to change how a user wants to see dates/times rendered. However, I've not yet managed to find a way to set the format for the time picker.
Here's how the custom field looks now:
However, I want to be able to enter, for example, 23:00 instead of 11:00 PM.
Is it possible already? If not, would it be something you consider implementing? I'm sure other users would benefit from this as well, not least because it is more compatible with ISO 8601.
As a side note: it would also be nice to be able to select from a dropdown list of hours: "11:00, 12:00, ..." instead of having to type every time. If it makes sense (and not yet implemented), I could create a separate task for that.