diff --git a/docker/Dockerfile.amd64 b/docker/Dockerfile.amd64
index 6d8d1e6..b6188ea 100644
--- a/docker/Dockerfile.amd64
+++ b/docker/Dockerfile.amd64
@@ -8,6 +8,7 @@ LABEL org.opencontainers.image.source="https://github.com/thegeeklab/git-batch"
 LABEL org.opencontainers.image.documentation="https://github.com/thegeeklab/git-batch"
 
 ENV PY_COLORS=1
+ENV TZ=UTC
 
 ADD dist/git_batch-*.whl /
 
diff --git a/docker/Dockerfile.arm b/docker/Dockerfile.arm
index 454d5eb..4ddbc8b 100644
--- a/docker/Dockerfile.arm
+++ b/docker/Dockerfile.arm
@@ -8,6 +8,7 @@ LABEL org.opencontainers.image.source="https://github.com/thegeeklab/git-batch"
 LABEL org.opencontainers.image.documentation="https://github.com/thegeeklab/git-batch"
 
 ENV PY_COLORS=1
+ENV TZ=UTC
 
 ADD dist/git_batch-*.whl /
 
diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index 9afb7bc..8d61c98 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -8,6 +8,7 @@ LABEL org.opencontainers.image.source="https://github.com/thegeeklab/git-batch"
 LABEL org.opencontainers.image.documentation="https://github.com/thegeeklab/git-batch"
 
 ENV PY_COLORS=1
+ENV TZ=UTC
 
 ADD dist/git_batch-*.whl /