Q4—also known as quarter four or the fourth quarter—is the last quarter of the financial year for both corporations and other organizations. Many companies' Q4 dates follow the calendar year, starting on Oct. 1 and ending on Dec. 31.
What are business quarters for 2021?
Understanding Quarters
- January, February, and March (Q1)
- April, May, and June (Q2)
- July, August, and September (Q3)
- October, November, and December (Q4)
What are the quarter ending dates?
Quarters
- First quarter, Q1: 1 January – 31 March (90 days or 91 days in leap years)
- Second quarter, Q2: 1 April – 30 June (91 days)
- Third quarter, Q3: 1 July – 30 September (92 days)
- Fourth quarter, Q4: 1 October – 31 December (92 days)
