from small one page howto to huge articles all in one place

search text in:

Which linux distribution do you use?

poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs






average rating: 1.7 (82 votes) (1=very good 6=terrible)

May 25th. 2007:




why adblockers are bad

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels






average rating: 1.3 (27 votes) (1=very good 6=terrible)

April, 26th. 2006:

Druckversion . pdf icon
You are here: System->Tips and Tricks

Timezone conversion using date

Many users may already use date to check the time from a console, but this week we're going to show you how it can be used to convert timezones. For example, most Gentoo announcements are timestamped in UTC. To convert a time to your timezone, use the following, which uses /etc/localtime to determine the target timezone:

Code Listing 1: Converting to the local timezone

% date -d '17:00 UTC' 
Sun Mar 28 12:00:00 EST 2004

If you want to convert to a different timezone, you can set the TZ enviornment variable to the appropriate timezone. There's a pitfall here: if GNU date doesn't find TZ in /usr/share/zoneinfo, it'll fall back to /etc/localtime without warning or error, so be careful. Here's an example of doing the reverse conversion from the previous example:

Code Listing 2: Converting to UTC

% TZ=UTC date -d '12:00 EST' 
Sun Mar 28 17:00:00 EST 2004


rate this article:
current rating: average rating: 1.5 (34 votes) (1=very good 6=terrible)
Your rating:
Very good (1) Good (2) ok (3) average (4) bad (5) terrible (6)

Support this site

Please read "Why adblockers are bad".

Other free services
Shorten long
URLs to short
links like
Reverse DNS lookup
Find out which hostname(s)
resolve to a
given IP or other hostnames for the server
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2013 Sascha Nitsch Unternehmensberatung UG(haftungsbeschränkt)
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 4.6 ms