According to many articles one the web, the way to set timezone is as following: cp /usr/share/zoneinfo/Asia/Singapore /etc/localtime echo 'Asia/Singapore' > /etc/timezone You can indeed get the correct time if you run it in dotnet core 5 docker linux containers. However you couldn’t get the correct local time in dotnet 6.0. I found the issue About time incorrect of docker image about aspnet-6 #62545. After I tried serveral combinations mentioned in the issue, finally I got a working solution.