diff --git a/lindemann/__main__.py b/lindemann/__main__.py
index 446e845..2596577 100644
--- a/lindemann/__main__.py
+++ b/lindemann/__main__.py
@@ -1,6 +1,7 @@
 # type: ignore[attr-defined]
 
 import random
+import time
 from enum import Enum
 from typing import Optional
 
@@ -62,6 +63,9 @@ def main(
         is_eager=True,
         help="Prints the version of the lindemann package.",
     ),
+    timeit: bool = typer.Option(
+        False, "-ti", "-timeit", help="Uses timeit module to show running time",
+    ),
 ):
 
     """
@@ -75,7 +79,7 @@ def main(
     # console.print(frames)
 
     if trj:
-        pritn(per_trj.calculate(tjr_frames))
+
         console.print(
             f"[magenta]lindemann index for the Trajectory:[/] [bold blue]{per_trj.calculate(tjr_frames)}[/]"
         )
@@ -115,6 +119,14 @@ def main(
         console.print(f"[magenta]{save.to_lammps(trjfile,indices_per_atom)}[/]")
         raise typer.Exit()
 
+    if timeit:
+        start = time.time()
+        linde_for_time = per_trj.calculate(tjr_frames)
+        time_diff = time.time() - start
+        console.print(
+            f"[magenta]lindemann index for the Trajectory:[/] [bold blue]{linde_for_time}[/] \n[magenta]Runtime:[/] [bold green]{time_diff}[/]"
+        )
+
 
 '''
 class Color(str, Enum):
diff --git a/poetry.lock b/poetry.lock
index c64d750..6f1107c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -157,7 +157,7 @@ description = "Distribution utilities"
 name = "distlib"
 optional = false
 python-versions = "*"
-version = "0.3.0"
+version = "0.3.1"
 
 [[package]]
 category = "dev"
@@ -222,7 +222,7 @@ description = "Internationalized Domain Names in Applications (IDNA)"
 name = "idna"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.9"
+version = "2.10"
 
 [[package]]
 category = "main"
@@ -858,7 +858,8 @@ darglint = [
     {file = "darglint-1.4.1.tar.gz", hash = "sha256:9147af9e6872e15209f67a70e6c7f16a821e516c0c06495fdb87e60ac0e5865a"},
 ]
 distlib = [
-    {file = "distlib-0.3.0.zip", hash = "sha256:2e166e231a26b36d6dfe35a48c4464346620f8645ed0ace01ee31822b288de21"},
+    {file = "distlib-0.3.1-py2.py3-none-any.whl", hash = "sha256:8c09de2c67b3e7deef7184574fc060ab8a793e7adbb183d942c389c8b13c52fb"},
+    {file = "distlib-0.3.1.zip", hash = "sha256:edf6116872c863e1aa9d5bb7cb5e05a022c519a4594dc703843343a9ddd9bff1"},
 ]
 dparse = [
     {file = "dparse-0.5.1-py3-none-any.whl", hash = "sha256:e953a25e44ebb60a5c6efc2add4420c177f1d8404509da88da9729202f306994"},
@@ -881,8 +882,8 @@ identify = [
     {file = "identify-1.4.20.tar.gz", hash = "sha256:b2cd24dece806707e0b50517c1b3bcf3044e0b1cb13a72e7d34aa31c91f2a55a"},
 ]
 idna = [
-    {file = "idna-2.9-py2.py3-none-any.whl", hash = "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"},
-    {file = "idna-2.9.tar.gz", hash = "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb"},
+    {file = "idna-2.10-py2.py3-none-any.whl", hash = "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"},
+    {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
 ]
 importlib-metadata = [
     {file = "importlib_metadata-1.7.0-py2.py3-none-any.whl", hash = "sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070"},
@@ -1112,7 +1113,6 @@ pyside2 = [
     {file = "PySide2-5.15.0-5.15.0-cp35.cp36.cp37.cp38-none-win32.whl", hash = "sha256:7c91a5074f3c60bac7e9336943a1dc9d5c8be8ab88a232dc55018e555dae81b2"},
     {file = "PySide2-5.15.0-5.15.0-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:2d72150f63025b9b55097c1a64d09da37ff9191f73f69237500dec7a4a130541"},
     {file = "PySide2-5.15.0-5.15.0_1-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:7ac86f31bc0a4fbf3f0bf00890e849441776be304c7b8bf259d777a7fe5fe913"},
-    {file = "PySide2-5.15.0-5.15.0_2-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:fad5ce781d0774bfad39f54b6c3376909b8d27f2075cbde6f4499df7dbd855f9"},
 ]
 pytest = [
     {file = "pytest-5.4.3-py3-none-any.whl", hash = "sha256:5c0db86b698e8f170ba4582a492248919255fcd4c79b1ee64ace34301fb589a1"},
@@ -1186,7 +1186,6 @@ shiboken2 = [
     {file = "shiboken2-5.15.0-5.15.0-cp35.cp36.cp37.cp38-none-win32.whl", hash = "sha256:4b0904e0967356a36e80cde05981faa14c120141856d973ee983eac0b83633c0"},
     {file = "shiboken2-5.15.0-5.15.0-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:19d5f715e5ae8a815a7f148a8614a3225dceee6fd9d5decaa7749657f0f7ccbe"},
     {file = "shiboken2-5.15.0-5.15.0_1-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:94991848e9ff4d03c2d7feab484113b5b5ad7f9fdfa0b0ff46ce18da47b36b58"},
-    {file = "shiboken2-5.15.0-5.15.0_2-cp35.cp36.cp37.cp38-none-win_amd64.whl", hash = "sha256:e753324a78cbdab1c5917b5600c708a8db7e1336579e7afa20ed90edda15eefa"},
 ]
 six = [
     {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},