ISO 8601
ISO 8601 is an international standard for representing dates, times, time zones, durations, and intervals in unambiguous textual formats.
Statistics Every Programmer Needs
ISO 8601 is an international standard for unambiguous representation of dates, times, durations, and intervals.
- How it is used
- Standardizes date parameters for retrieving historical financial data.
- How deep it goes
- Defines YYYY-MM-DD and related temporal forms, but does not develop the standard’s full specification.
- Examples
- Uses AAPL retrieval between 2023-10-01 and 2024-04-30 with daily, hourly, or weekly intervals.
- What you can do after
- Apply it via yfinance to submit unambiguous date ranges without date-interpretation errors.
Read how Statistics Every Programmer Needs explains ISO 8601 →
The Design of Web APIs, Second Edition
An ISO 8601 date format is a standardized textual representation of calendar dates defined by ISO 8601.
- How it is used
- Improves API date and time readability, clarity, and interoperability.
- How deep it goes
- Defines date and date-time forms, explains components, offsets, UTC, and precision choices.
- Examples
- Uses a bank transaction, date-only value, UTC timestamp, and equivalent one-hour time-zone offset.
- What you can do after
- Apply it by choosing readable date or date-time strings and limiting precision to actual requirements.
Read how The Design of Web APIs, Second Edition explains ISO 8601 →
Related concepts
- dateused by · A date is a calendar value identifying a particular day.
- timestampused by · A timestamp is a value representing a specific point in time, typically associated with an event, observation, or data item.
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