diff --git a/i3pystatus/clock.py b/i3pystatus/clock.py
index 18f05f3..bc7081e 100644
--- a/i3pystatus/clock.py
+++ b/i3pystatus/clock.py
@@ -14,12 +14,13 @@ class Clock(IntervalModule):
     """
 
     settings = (
-        ("format", "stftime format string, `None` means to use the default, locale-dependent format"),
+        ("format", "list of stftime format string, `None` means to use the default, locale-dependent format. Can cycle between formats with mousewheel"),
         ("color", "RGB hexadecimal code color specifier, default to #ffffff, set to `i3Bar` to use i3 bar default"),
     )
     format = None
     color = "#ffffff"
     interval = 1
+    currentFormatId = 0
 
     def init(self):
         if self.format is None:
@@ -29,15 +30,26 @@ class Clock(IntervalModule):
             lang = locale.getlocale()[0]
             if lang == 'en_US':
                 # MDY format - United States of America
-                self.format = "%a %b %-d %X"
+                self.format = ["%a %b %-d %X"]
             else:
                 # DMY format - almost all other countries
-                self.format = "%a %-d %b %X"
+                self.format = ["%a %-d %b %X"]
+
+        elif isinstance(self.format,str):
+            self.format=[self.format]
 
     def run(self):
         self.output = {
-            "full_text": datetime.datetime.now().strftime(self.format),
+            # todo find local
+            "full_text": datetime.datetime.now().strftime(self.format[self.currentFormatId]),
             "urgent": False,
         }
         if self.color != "i3Bar":
             self.output["color"] = self.color
+            
+
+    def on_upscroll(self):
+        self.currentFormatId = (self.currentFormatId + 1)% len(self.format)
+
+    def on_downscroll(self):
+        self.currentFormatId = (self.currentFormatId - 1)% len(self.format)