The Adobe versions provide much better print quality, and the whole point of these graphs is to print them onto paper. To print the Adobe format version, some browsers use the Adobe Acrobat reader as a plug-in, so following the link will load the reader. In this case, just hit print. With older browsers, you will need to save the Adobe Acrobat file to your computer, and then load it into the reader to print the file. These charts give the time of transit for your local meridian in local mean time .
Most people now use a civil time referred to one of the recognised international time zones .
If you want to squeeze the most accuracy from these charts, you need to know the difference between your local time and the zone time. If East of your zone time meridian, then you must subtract the minutes. The date you want to find the transit time for If daylight saving time is in force on the date you have chosen The transit time and declination charts both have the horizontal axis scaled in days of the year. Grid lines are placed every 30 days, and there are 'tick marks' for each 10 days. In practice, I tend to work to the nearest 10 day period on the days axis, and I tend to regard each major division as a month.