- Argonne National Laboratory-East site environmental report for calendar year (SuDoc E 1.2:AR 3/5/) by U.S. Dept of Energy,
- The Story of Clocks and Calendars : Marking a Millennium by Betsy Maestro, 1999-04-01
- Annals of the ISQY: Volume 1: Geophysical Measurements: techniques, observational schedules and treatment of data. Volume 2: Solar and Geophysical Events 1960-1965 (Calendar Record). Volume 3: the proton flare project (the July 1966 event) by Lincoln & Strickland edited by Minnis, 1968
- It's about time (Storyteller) by Lynette Evans, 1998
- A Week (First Step Nonfiction) by Robin Nelson, 2001-12
- Months (First Step Nonfiction) by Robin Nelson, 2001-12
- A Day (First Step Nonfiction) by Robin Nelson, 2001-12
- Keeping Time: From the Beginning and into the 21st Century by Franklyn Mansfield Branley, 1993-09-27
- Get Ready! For Standardized Tests : Math Grade 2 by Kristin B. Swanson, Carol Turkington, 2001-06-14
- Time in the Medieval World
- What Time Is It by A. G. Smith, 1996-09
- Larry Burkett's All About Time (Larry Burkett's Stewardship for the Family) by Larry Burkett, Kevin Miller, 2003-01
- Cristo's Chronicles: Book One: The King's Challenge (Cristo's Chronicles) by Anthony J. Mirarchi, 2007-07-28
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