Oops, I missed the emoji, thank you for correcting my mistake.
Novica, it is probably sensible to not try too hard at the moment to work around the date format limitations given
From DotLiquid for Designers implementations need to choose Ruby format compatibility or .Net. It appear Manager has been set up to use the latter so wee need to work with Standard date and time format strings - .NET | Microsoft Learn
Update
As a result of this post it is probably best to not put too much effort into localisation at the moment. I assume the future implementation will enable a larger range of use cases to be addressed and hopefully maintains relative ease of implementation for those with a good understanding of local tax requirements such as local accountants.