33 CFR § 20.306 - Computation of time.

---
identifier: "/us/cfr/t33/s20.306"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 20.306 - Computation of time."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "20.306"
section_name: "Computation of time."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "20"
part_name: "RULES OF PRACTICE, PROCEDURE, AND EVIDENCE FOR FORMAL ADMINISTRATIVE PROCEEDINGS OF THE COAST GUARD"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321; 42 U.S.C. 9609; 46 U.S.C. 7701, 7702; Department of Homeland Security Delegation No. 0170.1, para. 2(73)."
regulatory_source: "CGD 98-3472, 64 FR 28062, May 24, 1999, unless otherwise noted."
cfr_part: "20"
---


# 20.306 Computation of time.

(a) We compute time periods as follows:

(1) We do not include the first day of the period.

(2) If the last day of the period is a Saturday, Sunday, or Federal holiday, we extend the period to the next business day.

(3) If the period is 7 days or less, we do not include Saturdays, Sundays, or Federal holidays.

(b) If you were served a document (by domestic mail) that requires or permits a response, you may add 3 days to any period for response.

(c) If you need additional time to file a response, follow the rules in these tables.

(1) You may request an extension—

Table 20.306(**c**)(1)—How to Request an Extension

| If the response period— | By— |
| --- | --- |
| Has not expired | Telephone, letter, or motion. |
| Has expired | Only by motion describing why the failure to file was excusable. |

(2) You file your request as follows:

Table 20.306(**c**)(2)—Where to File an Extension Request

| If— | Then you file your request with the— |
| --- | --- |
| An ALJ has not been assigned | Hearing Docket Clerk. |
| An ALJ has been assigned | ALJ. |
| Your case is on appeal | Hearing Docket Clerk. |