Time zone abbreviations

UTC: Coordinated Universal Time (Greenwich England)
AST: Atlantic Standard Time (Puerto Rico, Virgin Islands), UTC - 4 hours
EST: Eastern Standard Time, UTC - 5 hours
EDT: Eastern Daylight Time, UTC - 4 hours
CST: Central Standard Time, UTC - 6 hours
CDT: Central Daylight Time, UTC - 5 hours
MST: Mountain Standard Time, UTC - 7 hours
MDT: Mountain Daylight Time, UTC - 6 hours
PST: Pacific Standard Time, UTC - 8 hours
PDT: Pacific Daylight Time, UTC - 7 hours
AKST: Alaska Standard Time, UTC - 9 hours
AKDT: Alaska Daylight Time, UTC - 8 hours
HAST: Hawaii-Aleutian Standard Time, UTC - 10 hours
HADT: Hawaii-Aleutian Daylight Time (Hawii does not observe daylight time), UTC - 9 hours
ChST: Chamorro Standard Time (Guam, Northern Marianas), UTC + 10 hours
SST: Samoa Standard Time, UTC - 11 hours
m: midnight
a: AM
p: PM

Notes

Primary dates marked "presumably" and polling times marked "reportedly" are based on unofficial or estimated data (especially as regards local variations from a jurisdictionwide statutory and/or regulatory standard) and are, thereby, subject to change.