### Common formats for formatting datetimes ### ### To be used with `std::datetime::format` or `std::datetime::parse` ## Format for [RFC 3339](https://www.rfc-editor.org/rfc/rfc3339#section-5.6) ## ## This format is also ISO8601 compatible. const RFC3339 = "%+"; ## Format for [RFC 2822](https://www.rfc-editor.org/rfc/rfc2822#section-3.3) ## ## Same as [RFC5322](#rfc5322) const RFC2822 = "%a, %d %b %Y %H:%M:%S %z"; ## Format for [RFC 5322](https://www.rfc-editor.org/rfc/rfc5322#section-3.3) ## ## Same as [RFC2822](#rfc2822) const RFC5322 = RFC2822;