Yep. Although I don’t use ISO8601 for time stamps when communicating online (for 2021-03-01T00:00Z is more confusing to me than 2021-03-01 16:00 PST8PDT), it’s easier to use for dates when discussing in an online forum where people may be from outside of the US.
"Looking for an unambiguous calendar-and-clock format that is internationally understood? It’s time for ISO 8601."
"ISO 8601 tackles this uncertainty by setting out an internationally agreed way to represent dates:
YYYY-MM-DD
For example, September 27, 2012 is represented as 2012-09-27."