查看“Voicemail Admin - Timezone Definitions”的源代码

Voicemail 管理员 –时区设置
总览
此模块支持高级用户使用。大部分环境下配置是完全可以工作的。如果需要修改高级设置，用户必须了解为什么做出修改。
Logging in
•	从菜单顶部点击 Settings
•	从下拉菜单中点击 Voicemail Admin
•	在 system view 链接中点击 Timezone Definitions
Settings
http://wiki.freepbx.org/download/attachments/28180519/voicemail-timezones.png
New Name
名称描述
New Timezone Definition
语音回复时间提示
Timezone 定义格式:   timezone|values
Timezones
 Time Zones 
选择用户系统时区，配置文件在 /usr/share/zoneinfo/ 目录下。

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Bamako
Africa/Bangui
省略。。。

Values
 Values 
时区支持的数值包括:
'filename'	语音文件名称 (语音文件必须是单引号)。
variable	变量值 (所支持的变量)
支持的变量 :	
A or a	Day of week (Saturday, Sunday, ...)<br/>
B or b or h	Month name (January, February, ...)<br/>
d or e	numeric day of month (first, second, ..., thirty-first)<br/>
Y	Year<br/>
I or l	Hour, 12 hour clock<br/>
H	Hour, 24 hour clock (single digit hours preceded by "oh")<br/>
k	Hour, 24 hour clock (single digit hours NOT preceded by "oh")<br/>
M	Minute, with 00 pronounced as "o'clock"<br/>
N	Minute, with 00 pronounced as "hundred" (US military time)<br/>
P or p	AM or PM<br/>
Q	"today", "yesterday" or ABdY<br/>
q	"" (for today), "yesterday", weekday, or ABdY<br/>
R	24 hour time, including minute<br/>