Convert EDT (Eastern Daylight Time) to AWST (Australian Western Standard Time)

Best time to schedule a meeting

Standard 9–5 working hours do not overlap at all between EDT and AWST. Someone has to take an early or late call — or use asynchronous communication instead.

EDT to AWST conversion table

About EDT

Eastern Daylight Time (EDT) is UTC−4. It is used in New York, Toronto, Miami and Atlanta from March to November.

Eastern Daylight Time is UTC−4, the summer clock for New York, Toronto, Miami and Atlanta, running from the second Sunday in March to the first Sunday in November. Those dates are US law and do not match Europe's, which changes on the last Sundays of March and October — so for two weeks in March and one in late October the gap between New York and London is an hour different from its usual five.

About AWST

Australian Western Standard Time (AWST) is UTC+8. It is used in Perth and Western Australia.

Australian Western Standard Time is UTC+8 and Western Australia does not observe daylight saving — it has rejected it in four referendums, most recently in 2009. Perth therefore keeps the same offset all year while Sydney moves, so the gap between Australia's two largest business centres is two hours in winter and three in summer.

Does this gap change with the seasons?

This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on EDT switches to EST (UTC−5) from November to March. So the 12-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.

AWST does not shift, so the whole change comes from one side. A recurring meeting fixed in AWST will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.

This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.

Frequently asked questions