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C++ ctime Library


C++ ctime Functions

The <ctime> library has a variety of functions that allow you to measure dates and times.

Function Description
asctime() Returns a C-style string representation of the time in a tm structure
clock() Returns a number representing the amount of time that has passed while the program is running
ctime() Returns a C-style string representation of the time in a timestamp
difftime() Returns the time difference between two timestamps
gmtime() Converts a timestamp into a tm structure representing its time at the GMT time zone
localtime() Converts a timestamp into a tm structure representing its time in the system's local time zone
mktime() Converts a tm structure into a timestamp
strftime() Writes a C-style string representing the date and time of a tm structure with a variety of formatting options
time() Returns a timestamp representing the current moment in time