Find Two Digits with Spaces

import re

text = "It happened on Feb 21 at 3:30"

answer= re.findall(r'\b\d{2}\b', text)
print(answer)

# To match only two digits with spaces
answers = re.findall(r'\s\d{2}\s', text)

for a in answers:
    print(a.strip())

# To do
# Find 3:30 or 3.30 or 3-30 alone