diff --git a/practice/microwave.py b/practice/microwave.py
new file mode 100644
index 0000000..b7c0455
--- /dev/null
+++ b/practice/microwave.py
@@ -0,0 +1,7 @@
+# Output two different ways you can enter a time duration on the microwave
+if __name__ == '__main__':
+    while True:
+        s = int(input())
+        print(f'{s // 60}:{s % 60:02}')
+        if s >= 60:
+            print(f'{s // 60 - 1}:{s - (s // 60 - 1) * 60:02}')