Date, from 1986

[sx3]

Hello,

Having problem with this date, it results in 2086 and not 1986.
Possible to get around the problem or is the date too old for KNX?

Code:

  grp.write('5/5/63', {
            year = 1986,
            month = 05,
            day = 21
          })

[admin]

KNX Date datatype uses 2 digits [0..99] to encode the year.
value ≥ 90 : interpret as 20th century
value < 90: interpret as 21st century
Valid range is 1990 to 2089.

If you want to display a date but not modify it then you can use string data type.