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telegram_bot.py

@@ -179,18 +179,33 @@ def _parse_cloud_reminder(text):
         due_ts = now + delta
         task = re.sub(r"in \d+\s*[\w]+s?", "", body).strip(" .")
     else:
-        m = re.search(r"\bat\s+(\d{1,2})[:.](\d{2})\b", body)
+        # Absolute time: "at" optional, colon optional ("at 10:48", "10 48pm", "10:48pm").
+        m = re.search(r"(?:\bat\s+)?(\d{1,2})\s*[:.]?\s*(\d{2})\s*(am|pm|a\.m\.|p\.m\.)?\b", body)
         if m:
             # "at HH:MM" means the user's wall clock (WAT = UTC+1); server runs UTC.
-            wat = _dt.datetime.now(_dt.timezone.utc) + _dt.timedelta(hours=1)
-            target = wat.replace(hour=int(m.group(1)), minute=int(m.group(2)),
-                                 second=0, microsecond=0)
-            if target.timestamp() <= now + 3600:
-                target = target + _dt.timedelta(days=1)
-            due_ts = target.timestamp() - 3600
-            task = re.sub(r"\bat\s+\d{1,2}[:.]\d{2}\b", "", body).strip(" .")
+            hh, mm, ap = int(m.group(1)), int(m.group(2)), (m.group(3) or "")
+            if 0 <= hh <= 23 and 0 <= mm <= 59:
+                if "p" in ap and hh < 12:
+                    hh += 12
+                if "a" in ap and hh == 12:
+                    hh = 0
+                wat = _dt.datetime.now(_dt.timezone.utc) + _dt.timedelta(hours=1)
+                target = wat.replace(hour=hh, minute=mm, second=0, microsecond=0)
+                if target.timestamp() <= now + 3600:
+                    target = target + _dt.timedelta(days=1)
+                due_ts = target.timestamp() - 3600
+                task = re.sub(r"(?:\bat\s+)?\d{1,2}\s*[:.]?\s*\d{2}\s*(?:am|pm|a\.m\.|p\.m\.)?\b",
+                              "", body).strip(" .")
+                # Strip leftover fragments like "I." from speech-to-text garble.
+                task = re.sub(r"\bif\s+something\b", "something", task).strip(" .")
+    if due_ts is None and not task:
+        return "What should I remind you about, and when, sir?"
     if due_ts is None:
-        return "Sir, tell me like \"remind me to drink water in 30 minutes\"."
+        return f"Remind you {task} — when, sir? (e.g. in 30 minutes, or at 10:48 PM)"
+    if not task:
+        when_q = (_dt.datetime.fromtimestamp(due_ts, _dt.timezone.utc)
+                  + _dt.timedelta(hours=1)).strftime("%I:%M %p").lstrip("0")
+        return f"At {when_q} WAT — remind you of what, sir?"
     if not task:
         task = "reminder"
     db = _init_firestore()