Like me you maybe using an Ubuntu computer running…
February 26, 2018
Ubuntu：修改时区, How do you set the timezone for crontab?
I had a similar problem on Trusty (14.04). Solved it by setting machine’s timezone then restarting
sudo dpkg-reconfigure tzdata– follow the instructions to select Region/Country
sudo service cron restart
本文：Ubuntu：修改时区, How do you set the timezone for crontab?