What time is 1 PM IST in EST?

To differentiate among the ambiguous time zone abbreviations, I will use these instead:

  • NAEST = North American Eastern Standard Time (UTC-5)
  • IrST = Irish Summer Time (UTC+1)
  • IsST = Israel Standard Time (UTC+2)
  • InST = India Standard Time (UTC+5.5)
  • AuEST = Australian Eastern Standard Time (UTC+10)

1 PM InST = 2:30 AM NAEST = 5:30 PM AuEST

1 PM IsST = 6 AM NAEST = 9 PM AuEST

1 PM IrST = 7 AM NAEST = 10 PM AuEST