Copyright(c) Alex Kuryakin 2018 kouriakine@mail.ru
time-diff - compare localhost time with remote NTP server
Syntax:
 time-diff server       - compare local time with server
 time-diff server?      - edit server name before compare
Example:
 time-diff time.windows.com
 time-diff ru.pool.ntp.org
 time-diff pool.ntp.org
 time-diff simply.dep0404.ru
 time-diff 172.21.4.55
 time-diff archive?