描述
debian操作系统，apt-get update 报错，采用更换源的方式解决问题。
E: Release file for http://deb.debian.org/debian/dists/buster-updates/InRelease is not valid yet (invalid for another 7h 27min 25s). Updates for this repository will not be applied.
E: Release file for http://security.debian.org/debian-security/dists/buster/updates/InRelease is not valid yet (invalid for another 1h 35min 41s). Updates for this repository will not be applied.
解决
尝试更换源来解决，将 sources.list 文件复制到 /etc/apt/sources.list 下，更新即可。
阿里云源
deb http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster main non-free contrib
deb http://mirrors.aliyun.com/debian-security buster/updates main
deb-src http://mirrors.aliyun.com/debian-security buster/updates main
deb http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
清华源
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free
Docker示例
RUN mv /etc/apt/sources.list /etc/apt/sources.list.bak && \
echo "deb http://mirrors.aliyun.com/debian/ buster main non-free contrib" >/etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ buster main non-free contrib" >>/etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian-security buster/updates main" >>/etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian-security buster/updates main" >>/etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib" >>/etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib" >>/etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib" >>/etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib" >>/etc/apt/sources.list
RUN apt-get clean && \
apt-get update && \
apt-get install -y --no-install-recommends curl procps telnet net-tools && \
rm -rf /var/lib/apt/lists/*
注意
不管是阿里云的源还是清华的源，http和https均可以，自行斟酌即可；
如果遇到无法拉取 https 源的情况，请先使用 http 源并安装：
apt install apt-transport-https ca-certificates