Constitution of the State of Delaware, Art. II, § 4. Time and frequency of sessions

(a) The General Assembly shall convene on the second Tuesday of January of each calendar year unless otherwise convened by the Governor, or by mutual call of the presiding officers of both Houses.

(b) The General Assembly may continue in session each calendar year so long as, in its judgment, the public interest may require;  however, each session may not extend beyond 5:00 p.m. on the last day of June unless the session is recalled by the Governor or the mutual call of the presiding officers of both Houses.