Date and Time

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This chapter describes functions for manipulating dates and times, including functions for determining what time it is and conversion between different time representations.

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• Time Basics :: Concepts and definitions.
• Elapsed Time :: Data types to represent elapsed times
• Processor And CPU Time :: Time a program has spent executing.
• Calendar Time :: Manipulation of ``real'' dates and times.
• Setting an Alarm :: Sending a signal after a specified time.
• Sleeping :: Waiting for a period of time.