If it is 1030 in Washington what time is it in Australia?

Answer 1

During the northern hemisphere summers, Eastern Daylight Saving Time in Washington is 12 hours behind Western Standard Time (Perth), 12 3/4 hours behind Central Western Standard Time (Eucla), 13½ hours behind Central Standard Time (Adelaide), and 14 hours behind Eastern Standard Time (Sydney).

During the Southern Hemisphere summers, Eastern Standard Time in Washington is 13 hours behind Western Standard Time (Perth), 13 3/4 hours behind Central Western Standard Time (Eucla), 14½ hours behind Central Standard Time (Darwin), 15 hours behind Eastern Standard Time (Brisbane), 15½ hours behind Central Daylight Saving Time (Adelaide), and 16 hours behind Eastern Daylight Saving Time (Sydney).

Answer 2

If it is 10:30 AM in Washington D.C. (Eastern Time Zone), then it would be 1:30 AM the next day in Australia on the east coast (Australian Eastern Standard Time). Australia is around 14-17 hours ahead of Washington depending on daylight saving time changes.