Final answer:
The Constitution regulates how Congress adjourns, requiring consent from both Houses for adjournments longer than three days. Amendment XX, Section 2 sets the regular meeting schedule, illustrating constitutional constraints on adjournment times, but each House may potentially set its own procedural rules within such constraints.
Step-by-step explanation:
The question 'Is fix time which to adjourn amendable?' pertains to the rules governing the adjournment of either House of Congress. According to the United States Constitution, neither House can adjourn for more than three days without the consent of the other.
Specific provisions related to adjournment and the conducting of business are found in the U.S. Constitution, which includes the requirement that both Houses must agree to adjourn and the conditions under which a smaller number of members may adjourn from day to day.
Under Amendment XX, Section 2, the Constitution also stipulates that Congress must meet at least once a year, with the first meeting beginning at noon on January 3, unless Congress specifies a different date. Although the Constitution offers guidance on the regularity of meetings and adjournments, it does not directly specify if the timing to adjourn is amendable.
However, the rules around adjournment can be seen as part of the procedural aspects that each House can determine, so long as they do not conflict with the Constitutional requirements.