Technical standards supported in Shortcuts on iPhone or iPad
Shortcuts supports standard formats typically used for more technical purposes, such as ISO 8601 and RFC 2822:
ISO 8601: The date portion follows the format
YYYY-MM-DD, displaying as 2017-06-01. If an ISO time is included, the time and time zone are appended to the date after aTdesignator, displaying as 2016-06-01T14:41:36-08:00.Note: The ISO 8601 format is particularly helpful for keeping dates in order — a list of ISO 8601 dates is displayed in chronological order when the files are sorted alphabetically from A-Z.
RFC 2822: An Internet Message Format used to uniformly represent date and time, including in HTTP and email headers. RFC 2822 includes the shortened day of week, numerical date, three-letter month abbreviation, year, time and time zone, displaying as 01 Jun 2016 14:31:46 -0700.
Note: RFC 2282 is rarely used outside of the Internet — if you don’t already know what it is, chances are you don’t need it. For more information, see https://tools.ietf.org/html/rfc2822.