### Question
How does the law define calendar day?


### Answer
Under *2 U.S.C. § 691e*, **calendar day** is defined as:

> a standard 24-hour period beginning at midnight

#### Citation:
  - *2 U.S.C. § 691e*
  - Heading: **CHAPTER 17B-IMPOUNDMENT CONTROL AND LINE ITEM VETO > SUBCHAPTER III-LINE ITEM VETO**

