4 ms·

If you go the other way, you only have to change 2020 years worth of dates instead of 14 billion. Just sayin.

• garmaine 6y ago
  But most dates BCE have more than one year of uncertainty in them.
  • Aeronwen 6y ago
    I know. Even the event the calendar's epoch is supposed to be based on is off by at least 4 years.