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datetimedockercontainers
Rajkumar Elumalai
Rajkumar Elumalai

Reputation: 1560

Docker Timezone in Ubuntu 16.04 Image

I have created a Docker container using the Ubuntu 16.04 image. 

docker run -it -d --name containername -v /var/www/public --privileged ubuntu

after creating the container, I checked the date inside the container:

$ date
Tue Oct 25 08:10:34 UTC 2016

But, I need it to use the Asia/Kolkata timezone. So I tried changing the /etc/timezone file, then docker stop and docker start the container, but it doesn't work. It still shows the same time.

How can I change the time zone in the Docker container after creating it?

Upvotes: 29

Views: 50692

Answers (11)

Yakir GIladi Edry
Yakir GIladi Edry

Reputation: 2841

Dockerfile:

RUN apt-get update && \
    apt-get install -yq tzdata && \
    ln -fs /usr/share/zoneinfo/America/New_York /etc/localtime && \
    dpkg-reconfigure -f noninteractive tzdata

Reference: https://dev.to/0xbf/set-timezone-in-your-docker-image-d22

Note: Need to run it as root user

Upvotes: 0

Vivek Gajbhiye
Vivek Gajbhiye

Reputation: 86

Simply map the volume while running docker container

-v /etc/timezone:/etc/timezone:ro

Upvotes: 1

jdhao
jdhao

Reputation: 28399

I am also experiencing this issue for a Ubuntu 18.04 docker container. Since tzdata package is not installed. There is no /usr/share/zoneinfo dir inside the docker. We need to first install tzdata and use dpkg-reconfigure to set the timezone. The following docker command works for me:

ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends tzdata \
    && rm -rf /var/lib/apt/lists/*
RUN ln -fs /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
    && dpkg-reconfigure --frontend noninteractive tzdata

Upvotes: 0

Jacques Cornat
Jacques Cornat

Reputation: 1642

My issue has been solved with this very simple solution (https://serverfault.com/a/826222) : Add timezone in environment variable.

The command is docker run -e TZ=Europe/Amsterdam ...

Or, using docker-compose, like I do : 

version: '3'
services:
    web:
        build: ./app
        ports:
            - ...
        volumes:
            - ...
        environment:
            - TZ=Europe/Paris

In my case, no more tzdata needed, or volume share with /etc/timezone & /etc/localtime.
Hope it helps !

Upvotes: 5

Mitar
Mitar

Reputation: 7030

Try:

echo "Asia/Kolkata" > /etc/timezone
rm -f /etc/localtime
dpkg-reconfigure -f noninteractive tzdata

You have to do rm /etc/localtime because of the Ubuntu bug.

Upvotes: 24

Tebe
Tebe

Reputation: 3214

I took this approach:

  1. Copy file /etc/localtime somewhere.

  2. Open it and find the this number (highlighted with yellow) enter image description here

  3. -3 corresponds to Moscow time. For Berlin set -1 . If you need positive value, set UTC2

  4. Copy and modify /etc/timezone according to your time zone.

  5. Link them to your container

Result:

enter image description here

Upvotes: 2

Belter
Belter

Reputation: 3807

If you use docker-compose, just add one line to your docker-compose.yml file.

version: '3'

services:
  ubuntu-local:
    image: ubuntu:16.04
    restart: on-failure
    command: python3 run_my_code.py
    working_dir: /code
    volumes:
      - ./code:/code
      - /etc/localtime:/etc/localtime:ro   # <--add this line to set timezone
    environment:
      - PYTHONUNBUFFERED=1

Upvotes: 2

Anthony O.
Anthony O.

Reputation: 24397

As said here, the secret is that dpkg-reconfigure tzdata simply creates /etc/localtime as a copy, hardlink or symlink (a symlink is preferred) to a file in /usr/share/zoneinfo. So it is possible to do this entirely from your Dockerfile. Consider:

ENV TZ=America/Los_Angeles
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

And as a bonus, TZ will be set correctly in the container as well.

This is also distribution-agnostic, so it works with pretty much anything Linux.

Upvotes: 13

Flavio Troia
Flavio Troia

Reputation: 2809

SOLVED: 

FROM ubuntu:16.04

RUN apt-get update && \
    apt-get install -y software-properties-common apt-utils locales tzdata

RUN echo "tzdata tzdata/Areas select Europe" > timezone.txt
RUN echo "tzdata tzdata/Zones/Europe select Rome" >> timezone.txt
RUN debconf-set-selections timezone.txt
RUN rm /etc/timezone
RUN rm /etc/localtime
RUN dpkg-reconfigure -f noninteractive tzdata

Upvotes: 1

qwerty
qwerty

Reputation: 1449

In ubuntu 16.04 i was missing tzdata so i had to install it. Working solution was

    ENV TZ 'Europe/Tallinn'
    RUN echo $TZ > /etc/timezone && \
    apt-get update && apt-get install -y tzdata && \
    rm /etc/localtime && \
    ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && \
    dpkg-reconfigure -f noninteractive tzdata && \
    apt-get clean

Upvotes: 31

Elton Stoneman
Elton Stoneman

Reputation: 19174

Updating /etc/timezone is the usual way, but there's a bug in Xenial which means that doesn't work.

Instead you need to create a link from the desired timezone to etc/localtime:

FROM ubuntu:xenial     
RUN ln -fs /usr/share/zoneinfo/US/Pacific-New /etc/localtime && dpkg-reconfigure -f noninteractive tzdata

Upvotes: 38

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