CODEWITHSUNDEEP
dockerdocker-compose
Sam Jones
Sam Jones

Reputation: 4618

Docker container UTC time off by actual UTC time by 1.5 hours

The time inside my container is 1.5 hours behind UTC/GMT. And I think I'm misunderstanding what i should be changing.

In the container, i run the following commands, which result in the container telling me that it's running in UTC. But the container UTC seems different to what I know as UTC.

root@1166f2f648d3:/app# cat /etc/timezone
Etc/GMT
root@1166f2f648d3:/app# date +"%Z %z"
UTC +0000
root@1166f2f648d3:/app# date
Mon Jul 27 07:08:09 UTC 2020 (Should be 9:38 UTC)

I tried copying a file to /etc/timezone containing Etc/GMT, which replaced the original value of Etc/UTC but this seems to have had no effect.

I also tried adding this to my Dockerfile just to see if there was any change at all, with no effect:

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

Background info: I'm running Linux docker containers from Windows 10, testing datetimes with redis.

My question is, how do i make it so the container date/time is the same as the result from https://www.google.co.uk/search?q=utc+time

Upvotes: 0

Views: 4929

Answers (1)

Adiii
Adiii

Reputation: 60016

The Googe link show UTC time, so I think you need UTC time. instead of America/Los_Angeles

ENV TZ="UTC"
RUN date

Not sure about your base image so you can try this

FROM alpine
RUN apk add --no-cache tzdata
ENV TZ="UTC"
RUN date

output

Step 3/4 : ENV TZ="UTC"
 ---> Running in fba71f2eea2a
Removing intermediate container fba71f2eea2a
 ---> e27e60387908
Step 4/4 : RUN date
 ---> Running in a9e8e7260d2b
Mon Jul 27 09:45:17 UTC 2020

Upvotes: 2

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