ISO 8601 Date and Time Specification Format
in reply to Re^2: What is a stringwise operator?
in thread What is a stringwise operator?
Dates in the format above are inspired by the ISO Date and Time Specification Format, ISO 8601 for short. (Often, the Zulu is omitted, a minor faux-pas in ISO terms.) The benefits are obvious: since the digits are already in most-to-least significant order, the strings sort naturally in chronological order; also, by using standard separators the included or omitted fields can be parsed with confidence.
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