

Depends on the language honestly. In my native language (that’s not English) it sounds somewhat clumsy with the zero in front, but it’s still sometimes used. Depending on the context it might be a simple number (zero two) or it might be an ordinal (zero second). From 2010 and on it’s been easier because you just say the equivalent of “tenth”, “eleventh” and so on.
In writing it also depends on the context - if it’s something ambiguous (that could be 1925 or 2025), then sure, write the full year, otherwise two digits are fine.







Context is everything.
“When are you guys coming over?”
“We were thinking 20th, but I couldn’t get off work then, so 21st it is.”
If you’re in that conversation, you’d be perfectly clear of what’s up. Imagine having to append “of December” to both dates (or also the year for that matter).
If it’s something more than a year ahead, then sure, I’ll include the month and the year - but that’s still going from most specific to least specific (i.e. day, month, year).