---
kind: "section"
citation: "33 C.F.R. § 20.306"
title: "33"
number: "20.306"
heading: "Computation of time."
url: "https://uscodex.org/cfr/33/20.306"
---

# §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—
  - (2) **You file your request as follows—**

## Notes

### Authority

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).

### Source

Source: CGD 98-3472, 64 FR 28062, May 24, 1999, unless otherwise noted.