I always wrote the year with four digits, even back in the 90s. So even if I write the date as 2026-01-31 (I do it for files) or 31/01/2026 (everyday), it’s completely unambiguous.
The actual problem is the internet, because Americans use that weird MM/DD/YYYY convention. To avoid confusion for those I often abbreviate the month instead of numbering it; e.g. 01/Jan/2026.
I always wrote the year with four digits, even back in the 90s. So even if I write the date as 2026-01-31 (I do it for files) or 31/01/2026 (everyday), it’s completely unambiguous.
The actual problem is the internet, because Americans use that weird MM/DD/YYYY convention. To avoid confusion for those I often abbreviate the month instead of numbering it; e.g. 01/Jan/2026.