Word origin · etymology
Descriptive computing label.
Nonexistent names a wall-clock reading skipped when clocks advance. Time gap describes that missing interval in local clock notation.
How we know · epistemology
Time-zone conversion rule
A forward clock change can leave a local reading with no corresponding instant. Software should surface that conflict; silently shifting the time adds information the record did not provide.
Connected concepts
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.