It's a date!

In Danish, month names are ALWAYS written with an initial lower case letter:

• 1. januar 2019

In English, we recommend the simple form in both British and American English:

• 1 January 2019

Note that in English, capital letters are ALWAYS used at the beginning of month names. In addition, there is NO full stop after the date number in English.

This also applies when you use prepositions of time, e.g.: 

• We agreed to meet on 1 January 2019