As long As I live or Until The Year 2059
Since October 1st, 2020, I have been interrupting whatever that I am doing at 8:20 pm or 20:20 to sew black paper of 2 x 2 inches for 20 minutes. I take a snapshot of the interrupted activity as evidence. Every year I start a minute later so the year matches the time. Assuming I will live until 2059, I will be 80 years old and will start sewing black squares at 8:59 pm or 20:59.