Fixed in development branch svn://svn.zabbix.com/branches/dev/ZBX-3978 .

(1) currently time periods like this can be specified in working time, user media, item flexible intervals and possibly elsewhere. will this now work like that everywhere ?

<sasha> this change will affect (on server side) following units: user media, item flexible intervals and action conditions. I think its all.

<dimir> CLOSED

(2) will this work like that in all locations in the frontend ? (working time highlighting, for example)

<sasha> working time also will be fixed in this issue

<KB> RESOLVED
<sasha> REOPENED - apache halts when we get graph with period more than 1h
<sasha> CLOSED - all changes in the frontend/php directory should be reverted. Working time in graphs work fine without any changes.

(3) this should be documented

<dimir> we decided there will be one place where time period specification format will be described

• http://www.zabbix.com/documentation/1.8/manual/config/time_period

and the following sections should have a link to it:

• http://www.zabbix.com/documentation/1.8/complete#items1 (item configuration --> flexible interval)
• http://www.zabbix.com/documentation/1.8/complete#action_conditions (Time period in)
• http://www.zabbix.com/documentation/1.8/complete#general (17.3.1.6 Working time)
• http://www.zabbix.com/documentation/1.8/complete#add_user
• http://www.zabbix.com/documentation/1.8/complete#users (User configuration)
• http://www.zabbix.com/documentation/1.8/manual/config

<dimir> RESOLVED

<richlv> maybe use "d" instead of "dd" for day placeholder (only one digit used there)

<dimir> I agree. RESOLVED

<richlv> fixed typo & some minor formatting issues. CLOSED

Fixed in pre-1.8.7 in r20977.