date --date "10 days" not working in docker image mcr.microsoft.com/azure-cli

[hemant-bhosale]

az feedback auto-generates most of the information requested below, as of CLI version 2.0.62

Describe the bug
date command is not working when we create the base docker image from mcr.microsoft.com/azure-cli
command: date --date "10 days"
it throws error invalid date 10 days

Dockerfile

FROM mcr.microsoft.com/azure-cli
RUN date --date "10 days"

To Reproduce
Create dockerfile as below and then build it

FROM mcr.microsoft.com/azure-cli
RUN date --date "10 days"

Expected behavior
should display the output with date 10 days later that current date

Environment summary
Docker image

Additional context

[hemant-bhosale]

I want to add some time to the current time and use it. But somehow not able to add the time to current time.
Tried this as well :
RUN date -u -d "3 months" '+%Y-%m-%dT%H:%M:%SZ'

[hemant-bhosale]

Resolved it by adding package RUN apk add --update coreutils && rm -rf /var/cache/apk/*

[yonzhan]

@jiasli for awareness