The time for EST is GMT-5 so that would make 23.33GMT 18.33EST
GMT (England) GMT-1 (Eastern Greenland / Azores) GMT-2 (Mid Atlantic Ocean Time) GMT-3 (Greenland) GMT-4 (North American - Atlantic Time) ----GMT-4.5 (Newfoundland Time) GMT-5 (North American - Eastern Time) GMT-6 (North American - Central Time) GMT-7 (North American - Mountain Time) GMT-8 (North American - Pacific Time GMT-9 (Alaska Time - Eastern Pacific Ocean Time) GMT-10 (Aleutian / Hawaii Time)
1630. Eastern time is -5 GMT
9.30 AM Australian Eastern Daylight Saving Time = 10.30 PM GMT 9.30 AM Australian Eastern Standard Time = 11.30 PM GMT 9.30 AM American Eastern Daylight Saving Time = 1.30 PM GMT 9.30 AM American Eastern Standard Time = 2.30 PM GMT
Pennsyvania is Eastern Time, GMT-5.
UTC - 4 hrs. (Eastern Daylight Saving Time; EDT) from the 2nd Sunday of March to the 1st Sunday of November. UTC - 5 hrs. (American Eastern Standard Time; EST) during the rest of the year.
Eastern Standard Time is GMT -5hours. 1:31 EST would be 6:31 GMT. Eastern Daylight Time is GMT -4 hours. 1:31 EDT would be 5:31GMT.
GMT (England) GMT-1 (Eastern Greenland / Azores) GMT-2 (Mid Atlantic Ocean Time) GMT-3 (Greenland) GMT-4 (North American - Atlantic Time) ----GMT-4.5 (Newfoundland Time) GMT-5 (North American - Eastern Time) GMT-6 (North American - Central Time) GMT-7 (North American - Mountain Time) GMT-8 (North American - Pacific Time GMT-9 (Alaska Time - Eastern Pacific Ocean Time) GMT-10 (Aleutian / Hawaii Time)
1630. Eastern time is -5 GMT
9.30 AM Australian Eastern Daylight Saving Time = 10.30 PM GMT 9.30 AM Australian Eastern Standard Time = 11.30 PM GMT 9.30 AM American Eastern Daylight Saving Time = 1.30 PM GMT 9.30 AM American Eastern Standard Time = 2.30 PM GMT
Pennsyvania is Eastern Time, GMT-5.
UTC - 4 hrs. (Eastern Daylight Saving Time; EDT) from the 2nd Sunday of March to the 1st Sunday of November. UTC - 5 hrs. (American Eastern Standard Time; EST) during the rest of the year.
12 noon
Canada has 6 time zones:Pacific Standard Time (GMT -8:00)Mountain Standard Time (GMT -7:00)Central Standard Time (GMT -6:00)Eastern Standard Time (GMT -5:00)Atlantic Standard Time (GMT -4:00)Newfoundland Standard time (GMT -3:00)
The EST timezone is GMT-5 meaning EST is five hours behind GMT.
1.30 PM
Australian eastern standard time is 10 hours in front of GMT, therefore it would be 7 pm in Australia.
Depending on which Eastern Time you are referring to and whether or not summer time is in effect in London, it could be 8 AM GMT, 9 AM BST, 9 AM GMT, 10 AM BST, 11 PM GMT, 12 AM BST, 12 AM GMT or 1 AM BST.