convert time to string and vice verse

[python]
[IN]
"""
Here is a example for converting string to time
"""
from datetime import datetime
# make string element
ex_str = "2018-01-01"
print(ex_str)
print("type:",type(ex_str))
[/python]

[python]
# you can convert string to time as below
ex_time = datetime.strptime("2018-01-01 01:01:01","%Y-%m-%d %H:%M:%S")
print(ex_time)
print("type:",type(ex_time))

[/python]