noun
second quarter (of a year)
Used in business, finance, and reporting to refer to the second three-month period of a fiscal or calendar year.
第２Ｑの決算発表は来月です。
The second quarter financial results announcement is next month.
売上は第２Ｑに大きく伸びた。
Sales grew significantly in the second quarter.
Refers to the first quarter, while 第２Ｑ refers to the second quarter.
A more formal term for 'quarter'; 第２Ｑ is a specific abbreviation for the second quarter.
Abbreviation of 第二 (second) + Ｑ (quarter).