Likely a URL slug or a specific tagging format used by the site to index the 2021 film during the 2024 calendar year.

If you can provide the or context (where you saw this phrase), I can try to find the specific information you need.

Here’s a draft write-up for “LK21DE When Spring Is in the Air 2024” in the lifestyle and entertainment category, based on the title you provided. (Note: Since this appears to reference an unofficial or fan-made title, the write-up is styled as a preview or editorial piece.)

: While the film had early premieres in 2023 at festivals like the USA Polish Film Festival, its wider international release and Indonesian premiere (at Europe on Screen) occurred in 2024 . Context of the Query