Date and time utilities
From cppreference.com
<
c
Functions
Time manipulation |
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Defined in header
<time.h>
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computes the difference between times
(function) |
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returns the current calendar time of the system as time since epoch
(function) |
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returns raw processor clock time since the program is started
(function) |
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(C11)
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returns the calendar time in seconds and nanoseconds based on a given time base
(function) |
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(C23)
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returns the resolution of calendar time based on a given time base
(function) |
Format conversions |
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Defined in header
<time.h>
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(deprecated in C23)
(C11)
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converts a
tm
object to a textual representation
(function) |
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(deprecated in C23)
(C11)
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converts a
time_t
object to a textual representation
(function) |
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converts a
tm
object to custom textual representation
(function) |
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Defined in header
<wchar.h>
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(C95)
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converts a
tm
object to custom wide string textual representation
(function) |
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Defined in header
<time.h>
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(C23)
(C11)
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converts time since epoch to calendar time expressed as Coordinated Universal Time (UTC)
(function) |
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(C23)
(C11)
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converts time since epoch to calendar time expressed as local time
(function) |
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converts calendar time to time since epoch
(function) |
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Constants
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Defined in header
<time.h>
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number of processor clock ticks per second
(macro constant) |
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Types
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Defined in header
<time.h>
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calendar time type
(struct) |
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calendar time since epoch type
(typedef) |
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processor time since era type
(typedef) |
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(C11)
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time in seconds and nanoseconds
(struct) |
References
- C17 standard (ISO/IEC 9899:2018):
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- 7.27 Date and time <time.h> (p: 284-291)
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- 7.29.5.1 The wcsftime function (p: 320-321)
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- 7.31.14 Date and time <time.h> (p: 333)
- C11 standard (ISO/IEC 9899:2011):
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- 7.27 Date and time <time.h> (p: 388-397)
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- 7.29.5.1 The wcsftime function (p: 439-440)
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- 7.31.14 Date and time <time.h> (p: 456)
- C99 standard (ISO/IEC 9899:1999):
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- 7.23 Date and time <time.h> (p: 338-347)
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- 7.24.5.1 The wcsftime function (p: 385-386)
- C89/C90 standard (ISO/IEC 9899:1990):
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- 4.12 DATE AND TIME <time.h>
See also
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C++ documentation
for
C Date and time utilities
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