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Installing the VoIP Intercom
Intercom Setup
Operations Guide 930242A-D CyberData Corporation
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2.2.11.2 Time Zone Strings
The posix time zone string tells the internal date and time utilities how to handle daylight savings
time for different time zones.
Table 2-18 shows some common strings.
Time Zone Time Zone String
US Pacific time PST8PDT,M3.2.0/2:00:00,M11.1.0/2:00:00
US Mountain time MST7MDT,M3.2.0/2:00:00,M11.1.0/2:00:00
US Eastern Time EST5EDT,M3.2.0/2:00:00,M11.1.0/2:00:00
Phoenix Arizona
a
MST7
US Central Time CST6DST,M3.2.0/2:00:00,M11.1.0/2:00:00
Table 2-19 shows a breakdown of the parts that constitute the following time zone string:
● CST6DST,M3.2.0/2:00:00,M11.1.0/2:00:00
Time Zone String
Part Meaning
CST6CDT The time zone offset from GMT and three character identifiers for the time zone.
CST Central Standard Time
6 The (hour) offset from GMT/UTC
CDT Central Daylight Time
M3.2.0/2:00:00 The date and time when daylight savings begins.
M3 The third month (March)
.2 The 2nd occurrence of the day (next item) in the month
.0 Sunday
/2:00:00 Time of day to change
M11.1.0/2:00:00 The date and time when daylight savings ends.
M11 The eleventh month (November)
.1 The 1st occurrence of the day (next item) in the month
.0 Sunday
/2:00:00 Time of day to change
Table 2-18. Common Time Zone Strings
a.Phoenix, Arizona does not use daylight savings time.
Table 2-19. Time Zone String Parts