time_t
From cppreference.com
Defined in header
<time.h>
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typedef /* unspecified */ time_t;
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Arithmetic (until C11) Real (since C11) type capable of representing times.
Although not defined by the C standard, this is almost always an integral value holding the number of seconds (not counting leap seconds) since 00:00, Jan 1 1970 UTC, corresponding to POSIX time.
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[edit] Notes
The standard uses the term calendar time when referring to a value of type time_t.
[edit] Example
Show the start of the epoch.
Run this code
Possible output:
0 seconds since the epoch began Thu Jan 1 00:00:00 1970
[edit] References
- C11 standard (ISO/IEC 9899:2011):
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- 7.27.1/3 Components of time (p: 388)
- C99 standard (ISO/IEC 9899:1999):
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- 7.23.1/3 Components of time (p: 338)
- C89/C90 standard (ISO/IEC 9899:1990):
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- 4.12.1 Components of time
[edit] See also
returns the current calendar time of the system as time since epoch (function) |
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(C11)
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converts time since epoch to calendar time expressed as local time (function) |
(C11)
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converts time since epoch to calendar time expressed as Coordinated Universal Time (UTC) (function) |
C++ documentation for time_t
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