Differences between version 17 and previous revision of TimeNotes.
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| Newer page: | version 17 | Last edited on Tuesday, March 21, 2006 7:03:51 pm | by LawrenceDoliveiro | Revert |
| Older page: | version 16 | Last edited on Tuesday, March 21, 2006 6:58:43 pm | by LawrenceDoliveiro | Revert |
@@ -16,9 +16,9 @@
Having the hardware clock set to UTC is A Good Idea, because it avoids the need to adjust the clock forward or backward an hour when daylight saving goes on or off. There is no standard, ''reliable'' way of recognizing whether the hardware clock has been set for daylight saving or not; hence it is possible, particularly if your machine boots more than one OperatingSystem and you switch between them at the wrong time, for the adjustment to be done twice, or not at all. However, you might be forced to have your hardware clock set to local time in order to maintain compatibility with another OperatingSystem that fiddles with your hardware clock for daylight saving.
See [UTC] and [NTP] for more.
-The internal representation of [UTC] time that all Unix systems use is often know
as the Unix timestamp. This value is defined as the number of seconds since 00:00.00 01-01-1970. This value is always stored in [UTC] and when displayed is adjusted via your time zone to display your local time.
+The internal representation of [UTC] time that all Unix systems use is often known
as the Unix timestamp. This value is defined as the number of seconds since 00:00.00 01-01-1970. This value is always stored in [UTC] and when displayed is adjusted via your time zone to display your local time.
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!! How to accomplish some simple tasks
@@ -69,8 +69,9 @@
<verbatim>
TZ=Pacific/Auckland date
</verbatim>
+Here the value of TZ is a filename path; if it doesn' begin with a __/__, then it is interpreted relative to the __/usr/share/zoneinfo__ directory (on most Linux distros). Multiple files in this directory with the same contents give different ways of specifying the same time zone; thus __NZ__ is a synonym for __Pacific/Auckland__.
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Excerpt from comp.risks 22.94:
