What is the method to change 24 hour format to 12 hour format without relying on import modules?

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One possible method to change 24 hour format to 12 hour format without relying on import modules is:

1. Ask the user to input a time in 24 hour format, for example: "Enter a time in 24 hour format (hh:mm:ss): "
2. Split the input string using ":" as the separator, and convert each part to an integer, for example:

time_str = input("Enter a time in 24 hour format (hh:mm:ss): ")
time_parts = time_str.split(":")
hour = int(time_parts[0])
minute = int(time_parts[1])
second = int(time_parts[2])

1. Check if the hour is greater than 12, and subtract 12 from it if it is, for example:

if hour > 12:
    hour -= 12

1. Determine if the time is in AM or PM by checking if the hour is less than 12, or equal to 12, for example:

if hour < 12:
    meridian = "AM"
else:
    meridian = "PM"

1. Print the converted time in 12 hour format, for example:

print("The time in 12 hour format is: {:02d}:{:02d}:{:02d} {}".format(hour, minute, second, meridian))

This method assumes that the input time is valid and in the correct format (hh:mm:ss), and that the hour is a number between 0 and 23. It also assumes that the output time should be in the format hh:mm:ss AM/PM.