How to use the time module for time processing in Python 3.x

How to use the time module for time processing in Python 3.x

Time is an important concept that often needs to be dealt with in programming. In Python, the time module can help us perform time acquisition, formatting, conversion and other operations. This article will introduce how to use the time module for time processing in Python 3.x and provide some sample code.

Introducing the time module
Before starting to use the time module, we need to introduce the module first. In Python, you can use the following code to introduce:

import time

Get the current time
Getting the current time is one of the commonly used time processing operations. Python's time module provides the time() function to get the timestamp of the current time in seconds. The sample code is as follows:

import time

current_time = time.time()
print("当前时间戳为：", current_time)

The above code will output the timestamp of the current time, for example: 1617450922.324454.

Time stamp conversion
Sometimes, we need to convert the timestamp into a specific date and time. Python's time module provides the gmtime() and localtime() functions for converting timestamps to UTC time and local time. The sample code is as follows:

import time

current_time = time.time()
utc_time = time.gmtime(current_time)
local_time = time.localtime(current_time)

print("当前时间戳为：", current_time)
print("UTC时间为：", utc_time)
print("本地时间为：", local_time)

The above code will output the specific information of the current timestamp, UTC time and local time.

Formatting of time
In actual development, we often need to display time in a specific format. Python's time module provides the strftime() function to convert time tuples or struct_time objects into formatted time strings. The sample code is as follows:

import time

current_time = time.time()
local_time = time.localtime(current_time)

formatted_time = time.strftime("%Y-%m-%d %H:%M:%S", local_time)
print("格式化后的时间为：", formatted_time)

The above code will format the local time into the format of year-month-day hour:minute:second.

Time delay
In some cases, we need to delay a period of time in the program. Python's time module provides the sleep() function to implement time delay. The sample code is as follows:

import time

print("开始执行")
time.sleep(5)
print("执行结束")

The above code will pause the execution of the program for 5 seconds when time.sleep(5) is executed, and then continue execution.

Summary
This article introduces how to use the time module for time processing in Python 3.x. By learning the use of the time module, we can easily obtain the current time, convert timestamps, format the time, and implement time delays. These functions are very useful for applications involving time in programming.

Reference materials:

• Python official documentation: https://docs.python.org/3/library/time.html

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