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{{Status | |||
|status=Draft | |||
|owner=Knowledge Agent | |||
|last_update=2026-07-16 | |||
|review=Pending | |||
}} | |||
{{TOC}} | |||
== Overview == | |||
Timezone에 대한 기술 문서입니다. | |||
=== Summary === | |||
* 무엇인가? - Timezone | |||
* 왜 필요한가? - HPC 및 서버 환경에서 필수 개념 | |||
* 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시 | |||
== Purpose == | |||
이 문서가 존재하는 이유 | |||
* Goal: Timezone에 대한 기술 정보 제공 | |||
* Scope: Timezone의 개념, 사용법, 설정 | |||
* Non-goals: 다른 주제로의 확장 | |||
== Key Concepts == | |||
{| class="wikitable" | |||
! Concept | |||
! Description | |||
! Related | |||
|- | |||
| Timezone | |||
| HPC/서버 환경에서 중요한 기술 개념 | |||
| [[Linux]], [[Server]] | |||
|} | |||
== Detailed Explanation == | |||
Timezone tells your system where you are in the world depending on your exact location on this planet with GMT-/+<nowiki><time> format.</nowiki> | Timezone tells your system where you are in the world depending on your exact location on this planet with GMT-/+<nowiki><time> format.</nowiki> | ||
On most [[Linux]], | On most [[Linux]], | ||
<code>/etc/timezone</code> is a text-based representation of what timezone you are in. | <code>/etc/timezone</code> is a text-based representation of what timezone you are in. | ||
<code>/etc/localtime</code> is a binary representation of the exact rules for calculating the time relative to UNIX time by a symbolic link from <code>/etc/localtime</code> to a file in the <code>/usr/share/zoneinfo</code> directory. | <code>/etc/localtime</code> is a binary representation of the exact rules for calculating the time relative to UNIX time by a symbolic link from <code>/etc/localtime</code> to a file in the <code>/usr/share/zoneinfo</code> directory. | ||
instead of manually chaing those file, timedatectl command change your timezone much easily.<syntaxhighlight lang="bash"> | instead of manually chaing those file, timedatectl command change your timezone much easily.<syntaxhighlight lang="bash"> | ||
# Get available timezone list and it's name | # Get available timezone list and it's name | ||
$ timedatectl list-timezones | grep -i seoul | $ timedatectl list-timezones | grep -i seoul | ||
Asia/Seoul | Asia/Seoul | ||
# Set system timezone to Asia/Seoul, for example. | # Set system timezone to Asia/Seoul, for example. | ||
$ sudo timedatectl set-timezone Asia/Seoul | $ sudo timedatectl set-timezone Asia/Seoul | ||
$ ls -al /etc/timezone | $ ls -al /etc/timezone | ||
-rw-r--r-- 1 root root 11 May 30 10:51 /etc/timezone | -rw-r--r-- 1 root root 11 May 30 10:51 /etc/timezone | ||
$ cat /etc/timezone | $ cat /etc/timezone | ||
Asia/Seoul | Asia/Seoul | ||
$ ls -al /etc/localtime | $ ls -al /etc/localtime | ||
lrwxrwxrwx 1 root root 32 May 30 10:51 /etc/localtime -> ../usr/share/zoneinfo/Asia/Seoul | lrwxrwxrwx 1 root root 32 May 30 10:51 /etc/localtime -> ../usr/share/zoneinfo/Asia/Seoul | ||
</syntaxhighlight> | </syntaxhighlight> | ||
systemd uses /etc/systemd/timesyncd.conf file for NTP time sync. | systemd uses /etc/systemd/timesyncd.conf file for NTP time sync. | ||
FallbackNTP points to the NTP servers, for example, FallbackNTP=time.nist.gov <syntaxhighlight lang="bash"> | FallbackNTP points to the NTP servers, for example, FallbackNTP=time.nist.gov <syntaxhighlight lang="bash"> | ||
# changing configuration file needs to restart systemd-timesyncd service | # changing configuration file needs to restart systemd-timesyncd service | ||
== Best Practices == | |||
* 최신 버전 사용 권장 | |||
* 공식 문서 참고 | |||
* 테스트 환경에서 먼저 검증 | |||
== References == | == References == | ||
[[Category:Linux]] | * [https://wiki.hpcmate.com Timezone] | ||
== Related Pages == | |||
* [[Linux]] | |||
* [[Server]] | |||
* [[Hardware]] | |||
* [[Network]] | |||
[[Category:Server]] | |||
== Knowledge Graph == | |||
Related | |||
→ [[Linux]] | |||
→ [[Server]] | |||
→ [[Hardware]] | |||
→ [[Network]] | |||
[[Category:Reference]] | [[Category:Reference]] | ||
Latest revision as of 11:31, 17 July 2026
Overview
Timezone에 대한 기술 문서입니다.
Summary
- 무엇인가? - Timezone
- 왜 필요한가? - HPC 및 서버 환경에서 필수 개념
- 언제 사용하는가? - 서버 구성, 성능 튜닝, 문제 해결 시
Purpose
이 문서가 존재하는 이유
- Goal: Timezone에 대한 기술 정보 제공
- Scope: Timezone의 개념, 사용법, 설정
- Non-goals: 다른 주제로의 확장
Key Concepts
| Concept | Description | Related |
|---|---|---|
| Timezone | HPC/서버 환경에서 중요한 기술 개념 | Linux, Server |
Detailed Explanation
Timezone tells your system where you are in the world depending on your exact location on this planet with GMT-/+<time> format.
On most Linux,
/etc/timezone is a text-based representation of what timezone you are in.
/etc/localtime is a binary representation of the exact rules for calculating the time relative to UNIX time by a symbolic link from /etc/localtime to a file in the /usr/share/zoneinfo directory.
instead of manually chaing those file, timedatectl command change your timezone much easily.
# Get available timezone list and it's name
$ timedatectl list-timezones | grep -i seoul
Asia/Seoul
# Set system timezone to Asia/Seoul, for example.
$ sudo timedatectl set-timezone Asia/Seoul
$ ls -al /etc/timezone
-rw-r--r-- 1 root root 11 May 30 10:51 /etc/timezone
$ cat /etc/timezone
Asia/Seoul
$ ls -al /etc/localtime
lrwxrwxrwx 1 root root 32 May 30 10:51 /etc/localtime -> ../usr/share/zoneinfo/Asia/Seoul
systemd uses /etc/systemd/timesyncd.conf file for NTP time sync. FallbackNTP points to the NTP servers, for example, FallbackNTP=time.nist.gov <syntaxhighlight lang="bash">
- changing configuration file needs to restart systemd-timesyncd service
Best Practices
- 최신 버전 사용 권장
- 공식 문서 참고
- 테스트 환경에서 먼저 검증
References
Related Pages
Knowledge Graph
Related