ValueError: day is out of range for month - on next iteration

[kavilakshmi]

Expression: "0 0 9/10 * ? *"

[pitchblack408]

Hi, thank you for contributing. I looked at the expression and I haven't used one like this one before. In addition, I didn't get that exception. Can you add a test case the for the specific use case?

Input cron(0 0 9/10 * ? *), occurrence: 2020-05-09 22:30:57+00:00
Result: 2020-05-19 00:00:00+00:00
Input cron(0 0 9/10 * ? *), occurrence: 2020-05-19 00:00:00+00:00
Result: 2020-05-29 00:00:00+00:00
Input cron(0 0 9/10 * ? *), occurrence: 2020-05-29 00:00:00+00:00
Result: 2020-06-09 00:00:00+00:00

[kavilakshmi]

Hi @pitchblack408,

Am added snippet i've to to replicate the issue here.
---REASON---

Next occurrence looking for 29th day in non-leap years (february) .

--SUPPORT SNIPPET--

`
from datetime import datetime, timezone
from pyawscron import AWSCron

start_dt = datetime(year=2023, month=1, day=1, tzinfo=timezone.utc)
count = 10
aws_cron = AWSCron(cron='0 0 9/10 * ? *')
while count:
start_dt = aws_cron.occurrence(start_dt).next()
print(start_dt)
count -= 1

`
---and the exception----

Traceback (most recent call last):
File "/home/ubuntu/Desktop/training/pyawscron_fix.py", line 10, in
start_dt = aws_cron.occurrence(start_dt).next()
File "/home/ubuntu/Desktop/training/.venv/lib/python3.10/site-packages/pyawscron/occurrence.py", line 138, in next
return self.__find_once(self.cron, dt)
File "/home/ubuntu/Desktop/training/.venv/lib/python3.10/site-packages/pyawscron/occurrence.py", line 68, in __find_once
return self.__find_once(parsed, dt)
File "/home/ubuntu/Desktop/training/.venv/lib/python3.10/site-packages/pyawscron/occurrence.py", line 63, in __find_once
return self.__find_once(parsed, dt)
File "/home/ubuntu/Desktop/training/.venv/lib/python3.10/site-packages/pyawscron/occurrence.py", line 70, in __find_once
return datetime.datetime(year, month, day_of_month, hour, minute, tzinfo=datetime.timezone.utc)
ValueError: day is out of range for month

---AFTER THE FIX---
2022-01-09 00:00:00+00:00
2022-01-19 00:00:00+00:00
2022-01-29 00:00:00+00:00
2022-02-09 00:00:00+00:00
2022-02-19 00:00:00+00:00
2022-03-09 00:00:00+00:00
2022-03-19 00:00:00+00:00
2022-03-29 00:00:00+00:00
2022-04-09 00:00:00+00:00
2022-04-19 00:00:00+00:00