C++ ctime

Functions
Time manipulation
clock
Clock program (function )
difftime
Return difference between two times (function )
mktime
Convert tm structure to time_t (function )
time
Get current time (function )

Conversion
asctime
Convert tm structure to string (function )
ctime
Convert time_t value to string (function )
gmtime
Convert time_t to tm as UTC time (function )
localtime
Convert time_t to tm as local time (function )
strftime
Format time as string (function )

Macro constants
CLOCKS_PER_SEC
Clock ticks per second (macro )
NULL
Null pointer (macro )

types
clock_t
Clock type (type )
size_t
Unsigned integral type (type )
time_t
Time type (type )
struct tm
Time structure (type )