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Time Zones

For selected countries, the local standard time offset from UTC is given, with daylight savings time where observed.

TEXAS USA Central: -6 hours (Local summer -5 hours)
USA Eastern: -5 hours (Local summer -4 hours)
USA Mountain: -7 hours (Local summer -6 hours)
USA Arizona: -7 hours
USA Indiana East: -5 hours
USA Pacific: -8 hours (Local summer -7 hours)
USA Alaska: -9 hours (Local summer -8 hours)
USA Aleutian: -10 hours
USA Hawaii: -10 hours

Time Zones obtained from:
http://tycho.usno.navy.mil/cgi-bin/tzone-post.sh

World Time Zone Map
http://aa.usno.navy.mil/graphics/TimeZoneMap2001.pdf

Texas Department of Transportation