update in regex

preprocessor.py

@@ -1,8 +1,8 @@
 import re
 import pandas as pd
 
-pattern_12 = '\d{1,2}\/\d{1,2}\/\d{1,2},\s\d{1,2}:\d{1,2}\s[a,m,p]+\s-\s'
-pattern_24 = '\d{1,2}\/\d{1,2}\/\d{1,2},\s\d{1,2}:\d{1,2}\s-\s'
+pattern_12 = '\d{1,2}\/\d{1,2}\/\d{2,4},\s\d{1,2}:\d{1,2}\s[a,m,p]+\s-\s'
+pattern_24 = '\d{1,2}\/\d{1,2}\/\d{2,4},\s\d{1,2}:\d{1,2}\s-\s'
 pattern_ph_num = '\d{1,2} \d{5} \d{5}'
 
 def checker(data):