The year 1999 will repeat in 2028.
In 2021.
1988 calendar year will repeat in 2016.
The calendar year will be the same in 2040.
The 2000 calendar will repeat in 2028. This was a leap year and leap year calendars generally repeat every 28 years.
The 1954 calendar repeated in 1965, 1971, 1982, 1993, 1999, and 2010. It will next repeat in 2021.
1954 Calendar repeats at 1965 .
The year 2006 will repeat in 2022.
The calendar for 2009 was the same as 2015
The 2002 calendar had repeated in years 2013 and 2019 and will next repeat in the year 2030.
1999 was not a leap year so it will not be repeated during the years 2016, 2020, 2024, 2028, 2032, 2036, nor 2040. That leaves 23 years that it can repeat 100%. The 1999 calendar started on a Friday. So, what years start on a Friday that are not any of the above years?
The year 2000 will repeat in 2028.