diff -r b20b59b350d5 -r 3e97bd360eda setup.py
--- a/setup.py	Thu Dec 07 18:16:24 2017 +0200
+++ b/setup.py	Tue Dec 12 11:54:57 2017 +0200
@@ -52,6 +52,7 @@
           "numpy",
           "matplotlib",
           "sphinx",
+          "pytz",
       ],
       entry_points={
           'console_scripts': ['licel2scc = atmospheric_lidar.scripts.licel2scc:main',