zevveli:

spider-starry:

Oh shit this is a rare chance to reblog this!! This only comes on the calendar once every couple of years!!

So for those of you wondering, this happens 4 times in a 28 year period. If it is not a leap year when the first day of the year is Saturday, and if it is a leap year when the first day of the year is Friday. So this will happen again in 2033, 2039, 2044, 2050, 2061, 2067, 2072, 2078, 2089, and 2095. 2100 will not be a leap year so the first calendar with this feature in the next century will be 2101, followed by 2107, 2112, 2118, 2129, and the cycle repeats.