Docker pull error : x509: certificate has expired or is not yet valid : <p>Description of problem:</p>

<p>I'm trying to pull ubuntu from the public registry with this command :</p>

<pre><code>docker pull ubuntu
</code></pre>

<p>And then i got this results (the previous command was working yesterday) :</p>

<p>"Error while pulling image: Get <a href="https://index.docker.io/v1/repositories/library/ubuntu/images" rel="noreferrer">https://index.docker.io/v1/repositories/library/ubuntu/images</a>: x509: certificate has expired or is not yet valid"</p>

<p>docker version :</p>

<pre><code>Client:
Version: 1.10.0
API version: 1.22
Go version: go1.5.3
Git commit: 590d510
Built: Thu Feb 4 18:36:33 2016
OS/Arch: linux/amd64

Server:
Version: 1.10.0
API version: 1.22
Go version: go1.5.3
Git commit: 590d510
Built: Thu Feb 4 18:36:33 2016
OS/Arch: linux/amd64
</code></pre>

<p>docker info :</p>

<pre><code>Containers: 4
Running: 0
Paused: 0
Stopped: 4
Images: 20
Server Version: 1.10.0
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 44
Dirperm1 Supported: true
Execution Driver: native-0.2
Logging Driver: json-file
Plugins: 
Volume: local
Network: bridge null host
Kernel Version: 3.19.0-49-generic
Operating System: Ubuntu 14.04.3 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 5.815 GiB
Name: ubuntu
ID: Y6OO:23T2:BAPU:DVQJ:HJCJ:USEP:T6EU:PMG4:O4M6:46C7:JKPC:BQHT
WARNING: No swap limit support
</code></pre>

<p>uname -a :</p>

<pre><code>Linux ubuntu 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
</code></pre>

<p>I verify my "date" and everything is good. I don't know where this issue can come from.</p>
