BAC-19xxxx FlexStat Application Guide
25 AG200824A
APPENDIX: UTC OFFSET TIME ZONES
To select a time zone and optional DST, see
Set Clock (Menu Options) on page 5
.
If
the FlexStat is used in a BACnet network with
UTC (Coordinated Universal Time)
synchronization (via broad-
casting or addressing a single thermostat) set the UTC Offset value. The UTC Offset value is in minutes and
corresponds to the distance of the local time zone to the zero degree meridian.
In stand-alone operation or
networks that do not have UTC broadcasts, setting this value is NOT necessary.
UTC
(also commonly known as Zulu or Greenwich Mean Time) is, for example,
5
hours ahead of
Eastern Stan-
dard Time
or
4
hours ahead of
Eastern DST (Daylight Saving Time)
. See the chart below for more time zone
conversions.
SAMPLE TIME ZONES*
OFFSET FROM UTC TO EQUAL LOCAL TIME**
+/– SIGN IN
FLEXSTAT
American Samoa, Midway Atoll
UTC —
660
minutes (11 hours)
None (+)
***
(West of 0 de-
gree Meridian)
Hawaii, Aleutian Islands
UTC —
600
minutes (10 hours)
Alaska, French Polynesia
UTC —
540
minutes (9 hours) or 480 minutes (8 hours) during DST
USA/Canada Pacific Standard Time
UTC —
480
minutes (8 hours) or 420 minutes (7 hours) during DST
USA/Canada Mountain Standard Time UTC —
420
minutes (7 hours) or 660 minutes (6 hours) during DST
USA/Canada Central Standard Time
UTC —
360
minutes (6 hours) or 300 minutes (5 hours) during DST
USA/Canada Eastern Standard Time
UTC —
300 (default)
minutes (5 hours) or 240 minutes (4 hours) during DST
Bolivia, Chile
UTC —
240
minutes (4 hours)
Argentina, Uruguay
UTC —
180
minutes (3 hours)
United Kingdom, Iceland, Portugal
0
hours
Austria, Belgium, Denmark, Italy
UTC +
60
minutes (1 hour)
—
(East of 0 de-
gree Meridian)
Egypt, Israel, Turkey
UTC +
120
minutes (2 hours)
Kuwait, Saudi Arabia
UTC +
180
minutes (3 hours)
United Arab Emirates
UTC +
240
minutes (4 hours)
Maldives, Pakistan
UTC +
300
minutes (5 hours)
India, Sri Lanka
UTC +
330
minutes (5.5 hours)
Bangladesh, Bhutan
UTC +
360
minutes (6 hours)
Laos, Thailand, Vietnam
UTC +
420
minutes (7 hours)
China, Mongolia, Western Australia
UTC +
480
minutes (8 hours)
Korea, Japan
UTC +
540
minutes (9 hours)
Central Australia
UTC +
570
minutes (9.5 hours)
Eastern Australia, Tasmania
UTC +
600
minutes (10 hours)
Vanuatu, Solomon Islands
UTC +
660
minutes (11 hours)
New Zealand, Fiji
UTC +
720
minutes (12 hours)
*Minor parts of the named areas may be in other time zones.
**May also need to convert from 24 to 12 hour format.
***The BACnet standard for this offset value is: “The time zones to the
west
of the zero degree meridian shall be
positive
values,
and those to the east shall be negative values.” The value is in minutes, not hours.
The UTC-Offset in the FlexStat display menu has no provision for
a – sign. Use KMC software to add the – sign for time zones in the
Eastern hemisphere as shown on the right.