De nauwkeurigheid is afhangend van de gebruiker's PC.
De tijdzones houden geen rekening met zomer en wintertijden, daar deze verschillend zijn volgens het land.
Belangrijkste afkortingen
Universeel
UTC - Universal Coordinated Time GMT - Greenwich Mean Time Z - Zero Meridan Time (Zulu Time, zelvde als UTC and GMT)
U.S.A. en Canada
AST - Atlantic Standard Time, UTC-4 hours ADT - Atlantic Daylight Time, UTC-3 hours EST - Eastern Standard Time, UTC-5 hours EDT - Eastern Daylight Savings Time, UTC-4 hours ET - Eastern Time, EST or EDT CST - Central Standard Time, UTC-6 hours CDT - Central Daylight Savings Time, UTC-5 hours CT - Central Time, CST or CDT MST - Mountain Standard Time, UTC-7 hours MDT - Mountain Daylight Savings Time, UTC-6 hours MT - Mountain Time, MST or MDT PST - Pacific Standard Time, UTC-8 hours PDT - Pacific Daylight Savings Time, UTC-7 hours PT - Pacific Time, PST or PDT HST - Hawaiian Standard Time, UTC-10 hours AKST - Alaska Standard Time, UTC-9 hours AKDT - Alaska Standard Daylight Savings Time, UTC-8 hours
Europa
GMT - Greenwich Mean Time, UTC BST - British Summer Time, UTC+1 hour IST - Irish Summer Time, UTC+1 hour WET - Western Europe Time, UTC WEST - Western Europe Summer Time, UTC+1 hour CET - Central Europe Time, UTC+1 hour CEST - Central Europe Summer Time, UTC+2 hours EET - Eastern Europe Time, UTC+2 hours EEST - Eastern Europe Summer Time, UTC+3 hours MSK - Moscow Time, UTC+3 hours MSD - Moscow Summer Time, UTC+4 hours
Australië
WST - Western Standard Time, UTC+8 hours CST - Central Standard Time, UTC+9.5 hours EST - Eastern Standard/Summer Time, UTC+10 hours/UTC+11 hours
