On the way home from work; the time or activities (such as stopping somewhere) while returning home after finishing work.
仕事帰りにスーパーで夕飯の材料を買った。
I bought ingredients for dinner at the supermarket on my way home from work.
仕事帰りに同僚と居酒屋で一杯やった。
After work, I had a drink with a colleague at an izakaya.
仕事帰りに図書館に寄って本を返した。
On the way home from work I stopped by the library to return a book.