diff --git a/autograder/Dockerfile b/autograder/Dockerfile
index 733ea745c86706970fc0d3ad9850d11478d7f759..ee68773578c9a9f193cb170d0d3aba97226baa3a 100644
--- a/autograder/Dockerfile
+++ b/autograder/Dockerfile
@@ -1,13 +1,15 @@
 FROM ubuntu:20.04
 MAINTAINER Autolab Team <autolab-dev@andrew.cmu.edu>
 
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && \
+ DEBIAN_FRONTEND="noninteractive" apt-get install -y \
   build-essential \
   gcc \
   git \
   make \    
   freeglut3-dev \
   gtkwave \
+  tzdata \
   texinfo \
   libncurses-dev \
   elfutils \
@@ -21,7 +23,9 @@ RUN apt-get update && apt-get install -y \
   gdb-avr \
   avr-libc \
   sudo \
-  && rm -rf /var/lib/apt/lists/*
+  && ln -fs /usr/share/zoneinfo/Europe/Helsinki /etc/localtime \
+  && DEBIAN_FRONTEND="noninteractive" dpkg-reconfigure --frontend noninteractive tzdata \
+  rm -rf /var/lib/apt/lists/*
 
 # Install autodriver
 WORKDIR /home