timeit.default_timer() The default timer, which is always time.perf_counter(). Changed in version 3.3: time.perf_counter() is now the default timer.

time.tzset() Resets the time conversion rules used by the library routines. The environment variable TZ specifies how this is done. Availability: Unix. Note Although in many cases, changing the TZ environment variable may affect the output of functions like localtime() without calling tzset(), this behavior should not be relied on. The TZ environment variable should contain no whitespace. The standard format of the TZ environment variable is (whitespace added for clarity): std offset [dst

time.tzname A tuple of two strings: the first is the name of the local non-DST timezone, the second is the name of the local DST timezone. If no DST timezone is defined, the second string should not be used.

time.timezone The offset of the local (non-DST) timezone, in seconds west of UTC (negative in most of Western Europe, positive in the US, zero in the UK).

time.time() Return the time in seconds since the epoch as a floating point number. Note that even though the time is always returned as a floating point number, not all systems provide time with a better precision than 1 second. While this function normally returns non-decreasing values, it can return a lower value than a previous call if the system clock has been set back between the two calls.

class time.struct_time The type of the time value sequence returned by gmtime(), localtime(), and strptime(). It is an object with a named tuple interface: values can be accessed by index and by attribute name. The following values are present: Index Attribute Values 0 tm_year (for example, 1993) 1 tm_mon range [1, 12] 2 tm_mday range [1, 31] 3 tm_hour range [0, 23] 4 tm_min range [0, 59] 5 tm_sec range [0, 61]; see (2) in strftime() description 6 tm_wday range [0, 6], Monday is 0 7 tm_yday

time.strptime(string[, format]) Parse a string representing a time according to a format. The return value is a struct_time as returned by gmtime() or localtime(). The format parameter uses the same directives as those used by strftime(); it defaults to "%a %b %d %H:%M:%S %Y" which matches the formatting returned by ctime(). If string cannot be parsed according to format, or if it has excess data after parsing, ValueError is raised. The default values used to fill in any missing data when mo

time.strftime(format[, t]) Convert a tuple or struct_time representing a time as returned by gmtime() or localtime() to a string as specified by the format argument. If t is not provided, the current time as returned by localtime() is used. format must be a string. ValueError is raised if any field in t is outside of the allowed range. 0 is a legal argument for any position in the time tuple; if it is normally illegal the value is forced to a correct one. The following directives can be embe

time.sleep(secs) Suspend execution of the calling thread for the given number of seconds. The argument may be a floating point number to indicate a more precise sleep time. The actual suspension time may be less than that requested because any caught signal will terminate the sleep() following execution of that signal’s catching routine. Also, the suspension time may be longer than requested by an arbitrary amount because of the scheduling of other activity in the system. Changed in version

time.process_time() Return the value (in fractional seconds) of the sum of the system and user CPU time of the current process. It does not include time elapsed during sleep. It is process-wide by definition. The reference point of the returned value is undefined, so that only the difference between the results of consecutive calls is valid. New in version 3.3.