To move slowly, as of time. Time feels like it's just creeping by in that class because it's so boring.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
Fig. [for time] to pass slowly. The minutes crept by as I awaited Mrs. Barron's telephone call. I know the days will creep by until we finally get our test results.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.