[horde] Can't add Outlook meeting request to Kronolith

Michael M Slusarz slusarz at horde.org
Wed Jan 9 21:50:39 UTC 2013

Quoting Oscar del Rio <delrio at mie.utoronto.ca>:

> On 01/ 8/13 03:07 PM, Michael M Slusarz wrote:
>> "W. Europe Standard Time" is not a valid timezone, as the error  
>> message indicates.
> Similar error when accepting event invitations from Exchange users  
> but with "Eastern Standard Time" here.
> HORDE: [ID 702911 user.emerg] [kronolith]  
> DateTimeZone::__construct(): Unknown or bad timezone (Eastern  
> Standard Time) on line 285 of "/var/php/5.3/pear/Horde/Date.php"

That also isn't a valid POSIX/GNU C-ish timezone (a/k/a from the  
tz/zoneinfo DB: http://www.twinsun.com/tz/tz-link.htm).

These are the only timezones supported by PHP and, for that matter,  
most software: http://php.net/manual/en/timezones.php

It *appears* that these are Windows tzid's, which are not supported.   
Someone will need to write conversion software to map to a valid TZ.   
See, e.g.,  


Michael Slusarz [slusarz at horde.org]

More information about the horde mailing list