The Local Time zone is shown as an offset from UTC, enabling you to ascertain when a particular activity occurred in either UTC or Local Time. The second way is to think of UTC as a stable frequency or rate which is used to count seconds. For example, a wall clock can display UTC in hours, minutes, and seconds. The way it is usually thought of by most people is as an indicator of time-of-day (hours, minutes, and seconds). The log file header indicates the Local Time zone that applied at the time that the log file was generated. There are two ways to think about Coordinated Universal Time (UTC). With any feature or function that runs in Local Time and with which Geo SCADA Expert interacts, Geo SCADA Expert converts the time from UTC to Local Time as required ( see Time Zone Support in Geo SCADA Expert).Īny log files generated by Geo SCADA Expert show time values in UTC. Internally the Geo SCADA Expert server processes and stores time values in UTC. (With computers that are running Windows Server 2016 and newer operating system versions, high accuracy time can be achieved using W32Time, providing that certain criteria are satisfied. As such, high accuracy tolerances such as that mentioned above are outside of the design specification of the W32Time service. Windows Time uses the Simple Network Time Protocol (SNTP), which is a simplified version of Network Time Protocol (NTP). Therefore, for high accuracy environments (such as ones in which time needs synchronizing to within an accuracy of 1 to 2 seconds), use an NTP client to maintain accurate time, and disable Windows Time (W32Time). After the configuration takes effect, use the display clock command to view the result. UTCClock adds a clock displaying the current time in the UTC timezone to the header on FandomDesktop. With such versions of Windows, the W32Time service is not a full-featured NTP solution. Click on the time in the upper-right corner of your Apple computer screen. By default, the local time zone is UTC zone. The ISO 8601 format.ATTENTION: This note only applies to machines that are running Windows Server 2012 R2 or earlier versions of Windows. Read the Hardware Clock and print its time to standard output in So there is no way to make hwclock print the time in UTC if the Hardware Clock is not set to UTC. In my case it would also not match with -localtime as TZ is set to the wrong timezone. In my case the Hardware Clock is set to localtime not UTC, so the output does not match when reading it as UTC. If you want hwclock to display the UTC time you can achieve it: # TZ=UTC date It tells hwclock that the time stored inside the Hardware Clock is UTC and thus the correct local time can be calculated and displayed. It's just an option to specify that yes, the clock is to be considered UTC, as opposed to -l, -localtime. The -u, -utc option does not tell hwclock to display time in UTC. So if it's not set to UTC, but to some other specific timezone, you have to provide the timezone yourself. Great Britain/United Kingdom is one hour ahead of UTC during. UTC is Coordinated Universal Time, GMT is Greenwich Mean Time. The Hardware Clock does not know its timezone, it's just a clock. Adjusted for Daylight Saving Time (69 places).
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