This cannot be answered accurately without stating where in America and the time of year.
America has different time zones and within those also has Daylight Saving time zones:-
PDT = Pacific Daylight Time; PST = Pacific Standard Time; MDT = Mountain Daylight Time; MST = Mountain Standard Time; CDT = Central Daylight Time; CST = Central Standard Time; EDT = Eastern Daylight Time; EST = Eastern Standard Time; AKDT = Alaska Daylight Time; AKST = Alaska Standard Time; HADT = Hawaii-Aleutian Daylight Time; HAST = Hawaii-Aleutian Standard Time; HST = Hawaii Standard Time.
A general guide would be that the UK is between 5 and 8 hours ahead of America.
It is earlier in South Dakota that in New England. The sun rises in the East and sets in West....
During summers, when DST is off, Latvia is 3 hours behind. In winters, when DST is on, Latvia is 2 hours behind
India is 51/2 hours ahead of England. Any specific time arrives on England's clocks51/2 hours after it has already arrived on clocks in Mumbai, Delhi, or Bhopal.
GMT+2:00. Add summer saving (+1:00) for summer timezone.
EST is 5 hours behind GMT. When it is 9:45am in EST it is 2:45pm in the UK.
Havana, Cuba, is 5 hours BEHIND London, England. Example: 9 AM in Havana = 2 PM in London.
No California is 2 hours behind of Iowa
The USA has 6 Time Zones including Alaska and Hawaii. Eastern Time - is (Greenwich Mean Time) GMT -5 hours, ie. 5 hours behind Greenwich, England. Central Time - is (Greenwich Mean Time) GMT -6 hours, ie. 6 hours behind Greenwich, England. Mountain Time - is (Greenwich Mean Time) GMT -7 hours, ie. 7 hours behind Greenwich, England. Pacific Time - is (Greenwich Mean Time) GMT -8 hours, ie. 8 hours behind Greenwich, England. Alaska Time - is (Greenwich Mean Time) GMT -9 hours, ie. 9 hours behind Greenwich, England. Hawaii Time - is (Greenwich Mean Time) GMT -10 hours, ie. 10 hours behind Greenwich, England. Hawaii is 2 hours behind San Francisco. (Daylight savings not taken into account.) California is 3 hrs. ahead of Hawaii from March to November and 2 hrs. ahead the rest of the year.
Turkey is 2 hours ahead of England. -OR- England is 2 hours behind Turkey.
Buenos Aires, Argentina is 5 hours ahead of Oregon.
Japan is (Greenwich Mean Time) GMT +9 hours, ie. 9 hours ahead of Greenwich, England. Bangkok is (Greenwich Mean Time) GMT +7 hours, ie. 7 hours ahead of Greenwich, England. Bangkok is 2 hours behind Tokyo. (Neither Japan nor Thailand observes daylight saving time.)
Three. The majority of Greenland is (Greenwich Mean Time) GMT -3 hours, ie. 3 hours behind Greenwich, England. The north western tip (two peninsulas) are (Greenwich Mean Time) GMT -4 hours, ie. 4 hours behind Greenwich, England. An island on the east coast is (Greenwich Mean Time) GMT -1 hours, ie. 1 hours behind Greenwich, England.