fix: timediff typo

CHANGELOG.rst

@@ -4,6 +4,14 @@ Changelog
 in development
 --------------
 
+Fixed
+~~~~~
+
+* Fix Type error for ``time_diff`` critera comparison. convert the timediff value as float to match
+  ``timedelta.total_seconds()`` return.
+
+  Contributed by @blackstrip
+
 Added
 ~~~~~
 

st2common/st2common/operators.py

@@ -314,7 +314,7 @@ def _timediff(diff_target, period_seconds, operator):
     # Note: date_utils.parse uses dateutil.parse which is way more flexible then strptime and
     # supports many date formats
     diff_target_utc = date_utils.parse(diff_target)
-    return operator((utc_now - diff_target_utc).total_seconds(), period_seconds)
+    return operator((utc_now - diff_target_utc).total_seconds(), float(period_seconds))
 
 
 def timediff_lt(value, criteria_pattern):