Yearly Quarter Calendar. They are denoted by the letters q1, q2, q3, and q4. Calendar quarters refer to the standard quarters of any year, starting with january to march as quarter 1, while fiscal quarters are different and not necessarily be the same as the first.

Fiscal quarters follow a company’s fiscal year, which can differ from a. Terms such as calendar quarters and fiscal (or financial) quarters are often used when discussing stocks and financial reports.