How to modify the system time of docker container

Problem restoration:

1. Run the docker container in the normal way

docker run -it --rm --name centos centos /bin/bash

2. After entering the container, execute the instruction to modify the container time

date -s 08/24/2006
date -s 13:02:00

will give the error date: cannot set date: Operation not permitted.

So how can we modify the time of the container?

The solution is as follows:

1. Exit the previous container and re-enter the container as follows

docker run -it --cap-add SYS_TIME --rm --name centos centos /bin/bash

2. Enter the container and use the command

date -s 08/24/2006
date -s 13:02:00

to modify the time. At this time, the modification can be successful.

Recommended tutorial: docker tutorial

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