Posted in Article The 13 Equal Mounts Calendar 2022-10-12 Leave a Comment on The 13 Equal Mounts Calendar Why is this 13 Equal Month calendar not the way? My birthday is 74th day of the year, MOD[74/28] = 18 day of 3rd month, so a Wednsday. So I do not have a my birthday won’t be on a weekend” complaint bias.