Sure, here if my Dockerfile im using to deploy the application:
FROM alpine:latest
RUN apk update && apk upgrade \
&& apk add ca-certificates tzdata \
&& rm -rf /var/cache/apk/*
WORKDIR /app
EXPOSE 8080
ARG TZ=Europe/Paris
COPY app /app/
COPY templates /app/templates
ENTRYPOINT ["./app"]
When I install Docker on my own linux machine hosted in the US the container got the correct time for Paris.