Questions & Answers about To nie jest zwykły dzień w pracy.
Here to means something like this or it in English.
In sentences of the pattern To jest... / To nie jest..., Polish often uses to as a kind of neutral subject:
- To jest dom. = This is a house.
- To jest ważne. = This/It is important.
So in To nie jest zwykły dzień w pracy, to introduces the whole statement: This is not an ordinary day at work.