Legal Definitions - calendar day

A calendar day refers to a full 24-hour period, starting precisely at midnight and ending at the following midnight, as it appears on a standard calendar. This includes every day of the week, such as weekdays, weekends, and public holidays, without exception.

Here are some examples to illustrate how this term is used:

• Example 1: Contractual Deadline

  Imagine a software development contract that states, "The client must provide feedback on the prototype within 5 calendar days of receipt." If the client receives the prototype on a Friday, the 5 calendar days would include Saturday, Sunday, Monday, Tuesday, and Wednesday. The deadline would be midnight on Wednesday, regardless of whether the client's office is open on the weekend.

  This illustrates that all days are counted consecutively, including non-business days, when a deadline is specified in "calendar days."

• Example 2: Notice Period for Tenancy

  A residential lease agreement specifies that a tenant must give "at least 30 calendar days' notice" before moving out. If a tenant decides to move out and submits their notice on October 15th, the 30 calendar days would count every day from October 16th through November 14th, including any weekends or holidays that fall within that period. The earliest they could legally vacate, having given proper notice, would be November 15th.

  This illustrates how "calendar days" ensures a continuous count of days for a notice period, providing a clear, unambiguous timeframe that isn't affected by typical working schedules.

• Example 3: Regulatory Reporting Requirement

  A government regulation requires businesses to report certain environmental incidents "within 3 calendar days of discovery." If a company discovers a reportable incident on a Saturday, the 3 calendar days would include Saturday, Sunday, and Monday. The report would need to be submitted by midnight on Monday, even if the regulatory agency's offices are closed on the weekend.

  This illustrates that legal obligations tied to "calendar days" demand compliance within the specified timeframe, irrespective of standard business hours or public holidays, emphasizing the continuous nature of the 24-hour periods.