Python How to check the string is a UTC timestamp? - python-3.x

Question

I need to check if the string of timestamp belongs to 'UTC' timestamp
i have below code
def time_stamp():
utc = timezone('UTC')
time_stamp = datetime.now(utc)
utc_time_stmap = time_stamp.strftime("%Y-%m-%dT%H:%M:%S.%f")
return utc_time_stmap
the above function return the utc time in a string format
print(type(time_stamp()))
<class 'str'>
print(time_stamp())
'2021-02-10 15:49:57.906168'
The 'time_stamp()' return the timestamp in 'string type'.
#Expected:
i need to check the return value falls within a tight date UTC date range?
Appreciated for the the help?
Thanks

Answer 1

Here you get some code where you may find your answer.
import re
from datetime import datetime
DATETIME_ISO8601 = re.compile(
r'^([0-9]{4})' r'-' r'([0-9]{1,2})' r'-' r'([0-9]{1,2})' # date
r'([T\s][0-9]{1,2}:[0-9]{1,2}:?[0-9]{1,2}(\.[0-9]{1,6})?)?' # time
r'((\+[0-9]{2}:[0-9]{2})| UTC| utc)?' # zone
)
def datetime_iso(string):
""" verify rule
Mandatory is: 'yyyy-(m)m-(d)dT(h)h:(m)m'
"""
string = string.strip()
return bool(re.fullmatch(DATETIME_ISO8601, string))
def utc_timezone(datetime_string):
datetime_string = datetime_string.strip()
return datetime_string.endswith("00:00") or datetime_string.upper().endswith("UTC")
check_this = ["2020-1-1 22:11", "2020-1-1 22:11:34 00:00", "2020-1-1 22:11:34+00:00", "2020-1-1 22:11+01:00", "2020-1-1 22:11 UTC", "does this help?"]
for datetime_string in check_this:
print(".........................")
print(f"This date time string '{datetime_string}' is in datetime iso format: {datetime_iso(datetime_string)}")
if datetime_iso(datetime_string):
print(f"Is it the UTC time zone? {utc_timezone(datetime_string)}")