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docs:man:timezone [2008-12-18 09:34] grizz |
docs:man:timezone [2015-05-15 16:07] (current) glen |
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====== Timezone ====== | ====== Timezone ====== | ||
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Time zones are special settings, which are used to change Universal Time Clock (UTC) to a local time. | Time zones are special settings, which are used to change Universal Time Clock (UTC) to a local time. | ||
What we need is to install a **tzdata** package. | What we need is to install a **tzdata** package. | ||
- | <file># poldek -i tzdata | + | <file> |
+ | # poldek -u tzdata | ||
</file> | </file> | ||
Now edit the **/etc/sysconfig/timezone** file. | Now edit the **/etc/sysconfig/timezone** file. | ||
- | <file>TIMEZONE="Europe/Warsaw" | + | <file> |
+ | TIMEZONE="Europe/Warsaw" | ||
</file> | </file> | ||
Time zones can be found in **/usr/share/zoneinfo** folder. | Time zones can be found in **/usr/share/zoneinfo** folder. | ||
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To apply changes - restart a timezone service | To apply changes - restart a timezone service | ||
- | <file># service timezone restart | + | <file> |
+ | # service timezone restart | ||
</file> | </file> | ||
+ | ===== Time Sync ===== | ||
+ | |||
+ | If your host BIOS clock is terribly wrong, you can fix the date from Internet: | ||
+ | |||
+ | * using ''rdate'', a rdate server from [[http://tf.nist.gov/tf-cgi/servers.cgi|here]]: <code> | ||
+ | [root@rescue /pld]# date | ||
+ | Sun Aug 3 03:35:46 CEST 2008 | ||
+ | [root@rescue /pld]# rdate -s time-a.nist.gov | ||
+ | [root@rescue /pld]# date | ||
+ | Fri May 15 16:03:19 CEST 2015 | ||
+ | </code> | ||
+ | * using ''ntpdate'' | ||
+ | |||
+ | **NB!**: Don't forget to sync Hardware clock: | ||
+ | <code> | ||
+ | [root@rescue /pld]# hwclock | ||
+ | Sun Aug 3 03:39:30 2008 -0.720527 seconds | ||
+ | [root@rescue /pld]# hwclock --systohc | ||
+ | [root@rescue /pld]# hwclock | ||
+ | Fri May 15 16:06:11 2015 -0.095274 seconds | ||
+ | [root@rescue /pld]# | ||
+ | </code> | ||
[[:Docs:man| TOC]] | [[:Docs:man| TOC]] | ||