3 ms·

-00:00 is permitted by ISO 8601 but it implies that the local time is the same as UTC, it does not imply that the local time is unknown.

• seagreen 6y ago
  Is Wikipedia wrong? It claims (https://en.wikipedia.org/wiki/ISO_8601 https://en.wikipedia.org/wiki/ISO_8601): An offset of zero, in addition to having the special representation "Z", can also be stated numerically as "+00:00", "+0000", or "+00". However, it is not permitted to state it numerically with a negative sign, as "−00:00", "−0000", or "−00"." Sure would be nice if we could read the spec online:)
  • fanf2 6y ago
    Ah, I read it again and there are a couple of places where ISO 8601 says to use + if the offset is 0 Thanks for the correction!
    • seagreen 6y ago
      Of course. And thanks for thinking about the idea, the more eyes on it the better.