People have been doing that since at least 01998.
https://web.archive.org/web/19991128020723/http://longnow.or...
People have been doing that since at least 01998.
https://web.archive.org/web/19991128020723/http://longnow.or...
> established in 1996 ... The Long Now Foundation hopes to "creatively foster responsibility" in the framework of the next 10,000 years. In a manner somewhat similar to the Holocene calendar, the foundation uses 5-digit dates to address the Year 10,000 problem[2] (e.g., by writing the current year "02025" rather than "2025"). The organization's logo is X, a capital X with an overline, a representation of 10,000 in Roman numerals.
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They zero pad, but it doesn't seem like anyone else does so with the https://en.wikipedia.org/wiki/Holocene_calendar
error: invalid digit "8" in octal constant error: invalid digit "9" in octal constant
But why only one leading zero? You can show you care somewhat more about the future by writing 002025, but then someone comes along and writes 000002025 ...