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C++ ctime time() Function

❮ ctime Functions


Example

Create a timestamp for the current moment in time:

time_t timestamp;
time(&timestamp);
cout << ctime(&timestamp);
Try it Yourself »

Definition and Usage

The time() function writes a timestamp for the current date into the memory given by the argument and also returns the timestamp as a value.

The time() function is defined in the <ctime> header file.

The timestamp usually represents a number of seconds relative to the unix epoch (January 1, 1970) but it depends on how the library is implemented, so it is safer to only use it with functions designed to handle timestamps such as localtime() and difftime().


Syntax

time(time_t * time);

The time_t data type represents a number.

Parameter Values

Parameter Description
time Required. A pointer to the memory location where the timestamp will be written.

Technical Details

Returns: A time_t value representing the current date and time.

More Examples

Example

Another way to create a timestamp:

time_t timestamp = time(NULL);
cout << ctime(&timestamp);
Try it Yourself »

❮ ctime Functions