The story
Ellipsis of wall-clock time.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: The actual time of day, as would be seen on a wall clock; contrasted with the (possibly inaccurate) time according to a computer system. Full definition →
Ellipsis of wall-clock time.
Etymology from Wiktionary, CC BY-SA 4.0.