如何在Python中将时间添加到 DateTime 对象上

在本文中，我们将讨论在Python向指定的 DateTime 对象添加时间。这样做的效果将产生一个新的 DateTime 对象。可以通过使用执行此添加 datetime.timedelta()函数。 timedelta()函数用于计算日期差异，也可用于Python的日期操作。这是执行日期操作的最简单方法之一。

Syntax: datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0)

Return values: This function returns the manipulated date.

因此，通过简单地将适当的值传递给上述给定的参数，就可以实现所需的任务。

示例 1：向 DateTime 对象添加时间

Python3

# Python3 code to illustrate the addition
# of time onto the datetime object
  
# Importing datetime
import datetime
  
# Initializing a date and time
date_and_time = datetime.datetime(2021, 8, 22, 11, 2, 5)
  
print("Original time:")
print(date_and_time)
  
# Calling the timedelta() function 
time_change = datetime.timedelta(minutes=75)
new_time = date_and_time + time_change
  
# Printing the new datetime object
print("changed time:")
print(new_time)

输出：

Original time:
2021-08-22 11:02:05
changed time:
2021-08-22 12:17:05

示例 2：通过向 DateTime 添加时间来更改日期

蟒蛇3

# Python3 code to illustrate the addition
# of time onto the datetime object
  
# Importing datetime
import datetime
  
# Initializing a date and time
date_and_time = datetime.datetime(2021, 8, 22, 11, 2, 5)
  
print("Original time:")
print(date_and_time)
  
# Calling the timedelta() function
time_change = datetime.timedelta(hours=36)
new_time = date_and_time + time_change
  
# Printing the new datetime object
print("changed time:")
print(new_time)

输出：

Original time:
2021-08-22 11:02:05
changed time:
2021-08-23 23:02:05

示例 3：同时更改两个参数

蟒蛇3

# Python3 code to illustrate the addition
# of time onto the datetime object
  
# Importing datetime
import datetime
  
# Initializing a date and time
date_and_time = datetime.datetime(2021, 8, 22, 11, 2, 5)
  
print("Original time:")
print(date_and_time)
  
# Calling the timedelta() function and
# adding 2 minutes and 10 seconds
time_change = datetime.timedelta(minutes=2, seconds=10)
new_time = date_and_time + time_change
  
# Printing the new datetime object
print("changed time:")
print(new_time)

输出：

Original time:
2021-08-22 11:02:05
changed time:
2021-08-22 11:04:15