Calendar Time ============= This section describes facilities for keeping track of calendar time. Note: Time Basics. The GNU C library represents calendar time three ways: * "Simple time" (the `time_t' data type) is a compact representation, typically giving the number of seconds of elapsed time since some implementation-specific base time. * There is also a "high-resolution time" representation. Like simple time, this represents a calendar time as an elapsed time since a base time, but instead of measuring in whole seconds, it uses a `struct timeval' data type, which includes fractions of a second. Use this time representation instead of simple time when you need greater precision. * "Local time" or "broken-down time" (the `struct tm' data type) represents a calendar time as a set of components specifying the year, month, and so on in the Gregorian calendar, for a specific time zone. This calendar time representation is usually used only to communicate with people.
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