Interesting behavior in Moment.js

Momemnt.js is a great library to work with dates. One of the features that I really like is ability to parse dates in different formats. Recently our QA has found that dates in short format, where the year is represented by 2 digits behave differently. For example date format is DD.MM.YY in this case we will have following results:

'12.05.88' becomes Thu May 12 1988 00:00:00 GMT+0200 (W. Europe Daylight Time)
'12.05.52' becomes Sun May 12 2052 00:00:00 GMT+0200 (W. Europe Daylight Time)

We got two dates in different centuries.
Turned out to be there is a special function called parseTwoDigitYear and default implementation is:

hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
};

It means that all years after 68 will be in 20th century but 68 and everything bellow 68 will go to the 21st. What is also interesting that 68 is just a random number. Good thing is that it could be adjusted.
You can override this behavior. As example let's make it return always the year 1995.

moment.parseTwoDigitYear = function (input) {
    return 1995;
};

You can find more about customization here