(2)In calculating periods of imprisonment expressed in months, a month shall be deemed to be a calendar month.Example 1. - A prisoner sentenced to one year's imprisonment on the 15th January, 1980, shall be released on the 14th January, 1981, a prisoner sentenced on the 1st January to one month's imprisonment shall be released on the 31st of the same month.Example 2. - A, B and C are sentenced, respectively, to one month's imprisonment on the 29th, 30th and 31st January, 1980, all three sentences expire on the morning of the 28th February.
