Chris Newman e Graham Klyne, Date and Time on the Internet: Timestamps, RFC 3339, Internet Engineering Task Force, 2002-07. URL consultato l'11 dicembre 2024.
«NOTE: ISO 8601 defines date and time separated by "T". Applications using this syntax may choose, for the sake of readability, to specify a full-date and full-time separated by (say) a space character.»
