ISO 8601 is an international data standard and a part of two national standards in the United States.
"The standard provides a well-defined, unambiguous method of representing calendar dates and times in worldwide communications, especially to avoid misinterpreting numeric dates and times when such data is transferred between countries with different conventions for writing numeric dates and times."
The format is year-month-day hour-minute-seconds, all using two digits for month, day, hour, minute, and seconds. Today would be 2023-01-31.
This format is used in Alteryx and Tableau as a default. It would be excellent if this was a choice for a date option.