The two Primary periods (Moon Overhead and Moon Underfoot) vary in length from one hour to three-and-one-half hours, depending on a number of important lunar cycles, such as how close the moon is to the earth that day and how high its orbit is. The secondary periods of Moonrise and Moonset last about one hour each…30 minutes before and after the listed time.

This lunar table is a trimmed-down version of its parent publication, the PrimeTimes, which is recommended for those wishing more complete data on the best days and times to go fishing and hunting for the entire year (see “Available Products” below)

PrimeTimes’ forecasts are based on solar/lunar research at a leading college of astrophysics and our own research pond/wildlife area. Annual data is supplied by the U.S. Naval Observatory. All times are adjusted to the center of your time zone and for Daylight Saving Time.

Available Products
The PrimeTimes Wall Calendar. $13.95 (plus $4 s&h). Know the best days, best times, and their relative strengths for all of 2020 with this information-packed, full-color, 11-inch by 17-inch, graphic peaks -and-valleys forecaster. Includes rise and set times for the sun and moon, space to log your catches, “Timely Tips,” plus fish and game symbols showing you each month’s don’t-miss periods. Also includes exclusive summary charts revealing the best and worst days of 2020, the year’s best periods, a look ahead at 2021, and more. Comes with FREE Astro Tables pocket calendar, which sells separately for $7.95, plus $3 s&h.

Book: “How to Know When to Go” by Rick Taylor. $14.95 (plus $4 s&h). 100 pages, 43 illustrations. A comprehensive look at the main factors influencing fish and game activity periods, plus how to devise an effective when-to-go game plan using any year’s PrimeTimes calendars. Individual assessments of bass, panfish, deer, turkey, and more.

Ultimate PrimeTimes software for PCs. $29.95 (plus $3 s&h, or no s&h if downloaded from web). The world’s best forecaster allows you to fine-tune the peak times to your exact location, quarry, and even weather. Too many features to list here, including making your own App. For more details, please call us or visit our web site (see below).


  1. Wall Calendar, Astro Tables and “How to Know…” book…. $19.95 (plus $5 s&h).
  2. Same as #1, plus Software…$46.95 (plus $6 s&h).
  3. Same as #2, minus book…$37.95 (plus $5 s&h).

Send to: PrimeTimes 2021 • Dept. LS
2487 NW 75th Ave. Ste. 100 • Ankeny, IA 50023

For credit/debit card orders, call toll-free 515-964-5516 .
For more information and samples of PrimeTimes products,visit:

For more details, please visit the PrimeTimes catalog