month. 1. One of the twelve periods of time in which the calendar is divided < the month of March>. โ€” Also termed calendar month; civil month. [Cases: Time 5. C.J.S. Time ยง 6.] 2. Any time period approximating 30 days <due one month from today>.3. At common law, a period of 28 days; the period of one revolution of the moon <a lunar month>. โ€” Also termed lunar month. 4.

One-twelfth of a tropical year; the time it takes the sun to pass through one sign of the zodiac, usu.

approximating 30 days <a solar month>. โ€” Also termed solar month.

[Blacks Law 8th]