Centos Timezone

To set a timezone on Centos some Admins recomend a link such as

ln -s /usr/share/zoneinfo/Europe/London /etc/localtime

However some processes write to the localtime file and this can get corrupted so {counter-intuitively} its is better to copy the file to /etc. If the incorrect timezone persists try removing /etc/localtime it should then revert to UTC {GMT}. Also there appears to be a process synchronising the UK timezone files so if the London file gets corrupted so will the Belfast one. To repair copy a file from another system – but use London as copying and using Belfast will get overwritten again by the corrupted London file.