If my math is correct I don't think this is true. If my math is incorrect then please correct me.
365 days a year equals 52 weeks and 1 day, that means whatever date of the year you pick, next year that date will be a day later. For example in the calendar below, Aug 1, 2014 is a Friday. This means Aug 1, 2015 will be a Saturday.
There always 31 days in August so the August calendar will look the same in any year as long as Aug 1 falls on a Friday. There are seven days a week so you can deduce that Aug 1 falling on a Friday would come around every 7 years, but we subtract for leap years since it would bump the date 2 days of the week forward. So now we have this occurrence coming around every 6 years. In theory this sounds good but it's possible to have 2 leap years between 6 years time which would reduce it to 5 years, or have a leap year land on the year that it would be pushed to a Friday thereby skipping it, so we work it out
Year 0 - 2014 - Friday
Year 1 - 2015 - Saturday
Year 2 - 2016 - Monday (leap year)
Year 3 - 2017 - Tuesday
Year 4 - 2018 - Wednesday
Year 5 - 2019 - Thursday
Year 6 - 2020 - Saturday (leap year)
Year 7 - 2021 - Sunday
Year 8 - 2022 - Monday
Year 9 - 2023 - Tuesday
Year 10 - 2024 - Thursday (leap year)
Year 11 - 2025 - Friday
Year 12 - 2026 - Saturday
Year 13 - 2027 - Sunday
Year 14 - 2028 - Tuesday (leap year)
Year 15 - 2029 - Wednesday
Year 16 - 2030 - Thursday
Year 17 - 2031 - Friday
So by my calculation 11 years after Aug 1, 2014, in the year 2025, August 1 will land on a Friday which would mean that there will be 5 Friday, Saturday and Sundays, and the occurrence will repeat itself once more 6 years after that, or 17 years after 2014 in the year 2031.
A quick check on my computer calendar seems to confirm this. It's quite a few years away but not quite 823 years...
For those whom subscribe to Feng Shui -- this is really cool.
If not it's an oddity we won't see again.
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August, next year, will have 5 Fridays, 5 Saturdays and 5 Sundays. This happens only once every 823 years. The Chinese call it "Silver pockets full." So, send this message to your friends and in four days money will surprise you. Based on Chinese Feng Shui.