he minute of the hour is half of the hour of the day, which is half of the day of the month, which is half of the month of the year, which is half of the 2-digit year of the 21st century 4-digit year (i.e. the last two digits of the 4-digit year "20##"), which is therefore, in a sense, half of the 4-digit year.

What is the exact time, including the minute, hour, day, month, and year?