Python sleep()

import time

time.sleep(2)
print("Wait until 2 seconds.")

# Output: Wait until 2 seconds.

Python sleep() Syntax

time.sleep(seconds)

Here, time is a Python module that provides several time-handling methods.

sleep() Parameters

The method takes a single parameter:

• seconds - the number of seconds for which the program will suspend

sleep() Return Value

The method does not return any value.

Example: sleep() Method

import time

print("Printed immediately.")
time.sleep(2.4)
print("Printed after 2.4 seconds.")

Output

Printed immediately.
Printed after 2.4 seconds.

Here's how the above program works:

1. "Printed immediately" is printed.
2. time.sleep(2.4) suspends execution for 2.4 seconds.
3. "Printed after 2.4 seconds" is printed.

Create a Digital Clock in Python

import time

while True:
    
    # get current local time as structured data
    current_time = time.localtime()
    # format the time in 12-hour clock with AM/PM
    formatted_time = time.strftime("%I:%M:%S %p", current_time)
    
    print(formatted_time)
    time.sleep(1)

Output

01:47:43 PM
01:47:44 PM
01:47:45 PM
01:47:46 PM
... ... ...

In the above example, we obtain and print the current local time inside an infinite while loop.

Then, the program waits for 1 second before repeating the same process.

Also Read:

• Python Program to Create a Countdown Timer