What are the functions of the time module in Python?

The time module is a module in the Python standard library that provides various functions and classes for handling time. Its main functions include:

1. To obtain the current time, various functions such as time(), ctime(), gmtime(), and localtime() can be used to retrieve the time in different formats including strings or tuples.
2. The strftime() function can format time in a specified way and return a formatted string.
3. Time parsing: the strptime() function can parse a string according to a specified format and return a time object.
4. Time delay: the sleep() function can pause the program for a specified amount of time, in milliseconds.
5. Timer: Functions like perf_counter() and process_time() can be used for performance testing, measuring program execution time, etc.
6. Time manipulation: The mktime() function converts a time tuple into a floating-point number representing the same time, while the strptime() function parses a time string into a time tuple.
7. Time comparison: comparing the size of two time objects, calculating time differences, etc.
8. Time zone processing: The timezone() function can retrieve the offset of the current time zone, while the tzset() function can change the time zone of the current process.
9. Constants related to dates and times: The time module also defines some constants related to dates and times, such as days of the week and months.
10. Other functions include clock accuracy and leap year determination.

It is important to note that some functions in the time module return time as the number of seconds since January 1, 1970, known as UNIX timestamp.