support tbs parameter

README.md

@@ -25,6 +25,16 @@ In addition, you can change the language google searches in. For example, to get
 from googlesearch import search
 search("Google", lang="fr")
 ```
+
+### Time-Based Search (tbs) Parameter
+You can also refine search results based on time. The tbs parameter allows you to filter results by various time ranges. For instance, to get results from the past hour, use `qdr:h`, or for results from the past year, use `qdr:y`. Here's how you can use the tbs parameter:
+```python
+from googlesearch import search
+search("Google", tbs="qdr:h")  # Results from the past hour
+search("Google", tbs="qdr:m")  # Results from the past month
+search("Google", tbs="qdr:y")  # Results from the past year
+```
+
 To extract more information, such as the description or the result URL, use an advanced search:
 ```python
 from googlesearch import search
@@ -39,4 +49,4 @@ If requesting more than 100 results, googlesearch will send multiple requests to
 ```python
 from googlesearch import search
 search("Google", sleep_interval=5, num_results=200)
-```
+```

googlesearch/__init__.py

@@ -6,18 +6,21 @@
 import urllib
 
 
-def _req(term, results, lang, start, proxies, timeout):
+def _req(term, results, lang, start, tbs, proxies, timeout):
+    params={
+        "q": term,
+        "num": results + 2,  # Prevents multiple requests
+        "hl": lang,
+        "start": start,
+    }
+    if tbs is not None:
+        params["tbs"] = tbs
     resp = get(
         url="https://www.google.com/search",
         headers={
             "User-Agent": get_useragent()
         },
-        params={
-            "q": term,
-            "num": results + 2,  # Prevents multiple requests
-            "hl": lang,
-            "start": start,
-        },
+        params=params,
         proxies=proxies,
         timeout=timeout,
     )
@@ -35,7 +38,7 @@ def __repr__(self):
         return f"SearchResult(url={self.url}, title={self.title}, description={self.description})"
 
 
-def search(term, num_results=10, lang="en", proxy=None, advanced=False, sleep_interval=0, timeout=5):
+def search(term, num_results=10, lang="en", tbs=None, proxy=None, advanced=False, sleep_interval=0, timeout=5):
     """Search the Google search engine"""
 
     escaped_term = urllib.parse.quote_plus(term) # make 'site:xxx.xxx.xxx ' works.
@@ -53,7 +56,7 @@ def search(term, num_results=10, lang="en", proxy=None, advanced=False, sleep_in
     while start < num_results:
         # Send request
         resp = _req(escaped_term, num_results - start,
-                    lang, start, proxies, timeout)
+                    lang, start, tbs, proxies, timeout)
 
         # Parse
         soup = BeautifulSoup(resp.text, "html.parser")