Friday 13th

[Snowy Owl]

Not sure if this is the right section, but here goes anyway! Discussing the occurrence of the above date the evening and got to wondering......is it possible for any year NOT to have a Friday 13th? Equally, what is the highest number of times it can occur in any given year? Is there anywhere that I can find them for the coming few years?

Thanks.

[dundurn]

Minimum 1, maximum 3 cycle repeats every 28 years. I guess there must be a hiccup in 3 out of 4 years that end in 00 because the leap year cycle is disrupted. Wikipedia has a listing which gives the pattern.

en.wikipedia.org/wiki/Friday_the_13th

[Snowy Owl]

Thanks, dundurn. I shall go and check it out.