If your copy of the film doesn't include them, you can find English subtitle files (typically in .srt format) on these popular community platforms:
Known for curated uploads and high-quality "English (SDH)" versions which include descriptions for non-dialogue sounds. After Hours subtitles English
Scorsese’s direction in After Hours is famous for its kinetic energy and overlapping dialogue. Subtitles help you: If your copy of the film doesn't include