Strftime
strftime is a date-and-time formatting function or method that converts a temporal value into a string according to formatting directives.
Modern C, Third Edition
strftime is a C standard-library function that formats a broken-down time into a caller-provided character array according to a format string.
- How it is used
- Formats broken-down calendar times into caller-controlled textual representations.
- How deep it goes
- Defines the interface and catalogs format codes, but defers locale access and setting to another treatment.
- Examples
- Uses format strings containing %F, locale-sensitive date and time codes, and the strftime declaration.
- What you can do after
- Apply strftime to compose textual presentations of values held in struct tm.
Modern C
strftime is a C standard library function that formats a broken-down time into a character string according to date-and-time conversion specifications.
- How it is used
- Formats broken-down calendar times into composed textual representations.
- How deep it goes
- Defines the interface and conversion families, while deferring pointer rationale and locale access.
- Examples
- Uses the function declaration and a reference table of date, time, locale, and ISO 8601 conversion specifications.
- What you can do after
- Apply strftime to compose date-and-time strings from struct tm values and conversion specifications.
Related concepts
- format stringuses · A format string is a character sequence containing literal text and directives that specify how supplied values are represented in formatted input or output.
- date formatused by · A date format is a convention or specification for representing and ordering the components of dates and, where applicable, times.
- Timeuses · Time is Ruby's built-in class for representing, manipulating, and formatting times and dates.
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