15 lines
764 B
Markdown
15 lines
764 B
Markdown
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# //base: Time-Related Functionality
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This directory contains the portions of //base that deal with time-related
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concepts. Most critical are the classes in [time.h](time.h). `Time` and
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`TimeTicks` both encode absolute times, but `TimeTicks` is monotonic and should
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be used for most internal purposes, while `Time` can move backwards and is
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primarily for human-readable times. `TimeDelta` is a duration computed from
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either of the above concepts.
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There are also various files dealing with clocks, which are primarily useful
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when tests need to modify how the program tracks the passage of time. See
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[/base/test/task_environment.h](/base/test/task_environment.h)'s `MOCK_TIME`
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ability for
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[testing components which post tasks](/docs/threading_and_tasks_testing.md).
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