Legal Definitions - calendar month

A calendar month refers to one of the twelve named months of the year (January, February, March, etc.), starting precisely on its first day and ending on its last day, regardless of how many days it contains. This term is used in legal contexts to define specific, unambiguous periods of time, ensuring clarity in deadlines, durations, and obligations.

• Example 1: Lease Agreement

  Imagine a residential lease agreement that states rent is due on the first day of each "calendar month."

  This means that rent is consistently due on January 1st, February 1st, March 1st, and so forth, for the entire duration of the lease. It clarifies that the payment schedule aligns with the standard, distinct monthly divisions of the year, rather than a rolling 30-day period calculated from the lease signing date or any other arbitrary point.

• Example 2: Employment Notice Period

  Consider an employment contract that requires an employee to give "one full calendar month's notice" before resigning.

  If an employee wishes for their last day of employment to be July 31st, they must submit their resignation no later than June 30th. If they were to submit their resignation on July 1st, their notice period would legally extend through August 31st, because July would not constitute a *full calendar month* of notice given prior to the start of that month.

• Example 3: Regulatory Compliance Reporting

  A new environmental regulation mandates that industrial facilities must submit monthly compliance reports covering "each calendar month" of operation.

  This means a facility must submit a report specifically for January (covering January 1st to January 31st), another distinct report for February (covering February 1st to February 28th or 29th), and so on. This ensures that all reporting periods are standardized and align precisely with the twelve distinct months of the year, preventing any ambiguity that could arise from using rolling 30-day cycles or other non-standard timeframes.