diff --git a/2025.07.25_python_for_loop_time/python_for_loop_time.py b/2025.07.25_python_for_loop_time/python_for_loop_time.py
new file mode 100644
index 0000000..e0e98a1
--- /dev/null
+++ b/2025.07.25_python_for_loop_time/python_for_loop_time.py
@@ -0,0 +1,32 @@
+import time
+
+start_time = time.time()
+for _ in range(10**8):
+    pass
+end_time = time.time()
+print(end_time-start_time)
+
+start_time = time.time()
+for _ in range(10**6):
+    for _ in range(10**2):
+        pass
+end_time = time.time()
+print(end_time-start_time)
+
+start_time = time.time()
+for _ in range(10**4):
+    for _ in range(10**2):
+        for _ in range(10**2):
+            pass
+end_time = time.time()
+print(end_time-start_time)
+
+print('---')
+
+for num in range(11):
+    times = 10**num
+    start_time = time.time()
+    for _ in range(times):
+        pass
+    end_time = time.time()
+    print(f'10^{num}: {end_time-start_time}')
\ No newline at end of file