HOW TO USE The Left-Hand Calendar Pages, 120 to 146

On these pages are the year's astronomical predictions for Boston (42°22' N, 71°3' W). Learn how to calculate the times of these events for your locale here or go to Almanac.com/Rise and enter your zip code. 

A SAMPLE MONTH

SKY WATCH: The paragraph at the top of each Left-Hand Calendar Page describes the best times to view conjunctions, meteor showers, planets, and more. (Also see How to Use the Right-Hand Calendar Pages, p. 118.) 

1. To calculate the sunrise time in your locale: Choose a day. Note its Sun Rise Key Letter. Find your (nearest) city on page 238. Add or subtract the minutes that correspond to the Sun Rise Key Letter to/ from the sunrise time for Boston.

EXAMPLE:

To calculate your sunset time, repeat, using Boston's sunset time and its Sun Set Key Letter value. 

2. To calculate the length of day: Choose a day. Note the Sun Rise and Sun Set Key Letters. Find your (nearest) city on page 238. Add or subtract the minutes that correspond to the Sun Set Key Letter to/ from Boston's length of day. Reverse the sign (e.g., minus to plus) of the Sun Rise Key Letter minutes. Add or subtract it to/from the first result. EXAMPLE: To calculate the length of day in Richmond, Virginia, on day 1: 

3. Use Sun Fast to change sundial time to clock time. A sundial reads natural (Sun) time, which is neither Standard nor Daylight time. To calculate clock time on a sundial in Boston, subtract the minutes given in this column; add the minutes when preceded by an asterisk [*]. 

Get the Left-Hand Calendar Pages with times set to your zip code at Almanac.com/Access.