Section 4(25) in West Bengal Municipal (Employees' Service) Rules, 2010
(25)"month" means a calendar month.Note I : In calculating a period expressed in terms of months and days, complete calendar months irrespective of the number of days in each month shall first be calculated and the odd number of days calculated subsequently;Note II: In calculating a period of say 3 months and 20 days from the 25th day of January, 3 months should be taken as ending on the 24th day of April and 20 days on the 14th day of May. In thesame way the period from the 30th day of January to the 2nd day of March should be reckoned as 1 (one) month and 2 days, because one month from the 30th day of January ends on the 28th day of February;
