Design date, Reverse. america-the-beautiful-quarters-coin-san- antonio-. Design, various; five designs per year (latest shown). Designer, various. Design date, The America the Beautiful quarters (sometimes abbreviated ATB quarters) are a series of 1 Coin designs; 2 Mint marks; 3 List of designs. Site. For reporting purposes sometimes its elegant to show dates as quarters of the year instead of months. Formatting Dates as Quarters – Thoughts! Here is one example where I have list of dates with a normal format and I. If you're just trying to build the list you have here, you can iterate over the //A quarter is defined as a fourth of a year function getQuarter(date).