The summary below is paraphrased from the Senate Manual: Rules for Impeachment Section
1. After the articles of impeachment are presented in proper form to the Senate, at 1:00 afternoon of the day following presentation the Senate shall proceed to the consideration of such articles, and continue in session from day to day (Sundays excepted) to:
a. Administer oaths or affirmation to the members of the Senate,
b. Oath of Office administered to the Chief Justice of the Supreme Court
c. The Senate shall remain in session from day to day until final judgment shall be rendered (Sundays excepted)
2. The Chief Justice of the Supreme Court will replace the presiding officer of the Senate as the presiding officer of the Impeachment trial and he shall have power to make and issue, by himself, all orders, mandates, writs, and precepts authorized by the rules of the Senate, or by the Senate, and to make and enforce regulations and orders of the Senate during the consideration of said articles in the premises as the Senate may authorize.
3. The Chief Justice may rule on all questions of evidence including, but not limited to, questions of relevancy, materiality, and redundancy of evidence, and incidental questions, which ruling shall stand as the judgment of the Senate, unless some Member of the Senate shall ask that a formal vote be taken thereon and without debate submit such question to a vote of the Members in accordance with standing rules of the Senate for the purpose of affirming or denying the judgment of the Chief Justice. (Referred below as Rule 3)
4. The impeached person shall be summoned or a representative for the person impeached shall appear, as appointed and if pleads guilty the oath shall be administered
5. The trial manager(s) for the House of Representatives and the Chief Justice shall exercise all the powers and functions conferred upon the Senate under the rules of procedure and practice in the Senate when sitting on impeachment trials. Witnesses presented shall be examined by one person on behalf of the party producing them, and cross examined by one person on the other side. A question by a Senator, or to offer a motion or order may be ordered to be put to the Chief Justice in writing. The parties or their counsel may interpose objections and the merits may be argued by the parties or their counsel. Ruling may be made as provided in Rule 3. It shall not be in order for any Senator to engage in colloquy.
6. All preliminary or interlocutory questions, and all motions, shall be argued for not exceeding one hour, each side. (The Senate may otherwise order.) Only one person on each side may open the case, and two persons each side may close.
7. An article of impeachment shall not be divisible for the purpose of voting thereon. Once voting has commenced, voting shall be continued until completed on all articles. The yeas and nays shall be taken. A motion to reconsider the vote by which any article of impeachment is sustained or rejected shall not be in order.
Publiustoo.com December 20, 2019