Docker Timezone in Ubuntu 16.04 Image

Question

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?

score 37 · Accepted Answer · answered Oct 25 '16 at 08:42

37

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

answered Oct 25 '16 at 08:42

Elton Stoneman

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Instead of Pacific-New, which one is for Mountain? – Jose Cabrera Zuniga Nov 20 '17 at 14:24
The only path my container has under `/usr/share/zoneinfo` is `/usr/share/zoneinfo/Etc/UTC`, so that does not work ;( – Andrew Savinykh Dec 27 '17 at 02:31
2

dpkg-query: package 'tzdata' is not installed and no information is available Use dpkg --info (= dpkg-deb --info) to examine archive files, and dpkg --contents (= dpkg-deb --contents) to list their contents. /usr/sbin/dpkg-reconfigure: tzdata is not installed – rjurney Jul 12 '18 at 17:12
echo $TZ > /etc/timezone would appear to be the ? debian way? . ln -sf /usr/share/zoneinfo/$TZ /etc/localtime is the CentOS/Redhat way. However mileage varies more with other OS and applications do not always use the OS timezone. Application service start scripts may need to be customized with the timezone. – gaoithe Jan 22 '19 at 17:31

score 31 · Answer 2 · answered Jun 19 '17 at 10:22

31

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

answered Jun 19 '17 at 10:22

qwerty

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Note that we need also to add `ENV DEBIAN_FRONTEND=noninteractive`. Otherwise, `apt-get install -y tzdata` will run in interactive mode. – jdhao Jun 10 '20 at 07:10

score 24 · Answer 3 · edited Aug 29 '18 at 07:03

24

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.

edited Aug 29 '18 at 07:03

answered Apr 14 '17 at 04:51

Mitar

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Marvelous. Simplest solution yet. – Jeff May 15 '18 at 17:01

score 13 · Answer 4 · answered Jan 24 '18 at 20:15

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.

so much better than to install tzdata, etc – pscheit Jan 16 '19 at 13:10 — pscheit, Jan 16 '19 at 13:10

score 5 · Answer 5 · answered Nov 21 '18 at 23:39

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 !

score 2 · Answer 6 · answered Jan 26 '18 at 13:50

2

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

answered Jan 26 '18 at 13:50

Belter

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1

tzdata package seems not installed under a purpose in official docker ubuntu images, for which it sound better to make usage of original docker mechanism. – 千木郷 Jun 09 '19 at 23:28

score 2 · Answer 7 · answered Mar 16 '18 at 11:22

I took this approach:

Copy file /etc/localtime somewhere.
Open it and find the this number (highlighted with yellow)
-3 corresponds to Moscow time. For Berlin set -1 . If you need positive value, set UTC2
Copy and modify /etc/timezone according to your time zone.
Link them to your container

Result:

score 1 · Answer 8 · answered Aug 25 '17 at 11:12

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

score 1 · Answer 9 · answered Sep 02 '20 at 08:43

1

Simply map the volume while running docker container

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

answered Sep 02 '20 at 08:43

Vivek Gajbhiye

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score 0 · Answer 10 · answered Jun 10 '20 at 07:14

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

Yakir GIladi Edry · Answer 11 · 2022-02-28T14:57:45.133

0

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

edited Feb 28 '22 at 14:57

answered Feb 28 '22 at 14:22

Yakir GIladi Edry

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Docker Timezone in Ubuntu 16.04 Image

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