Helena vs. Sydney time difference

Helena time
Sydney time
3:33 am Wednesday7:33 pm Wednesday

Helena, Montana, USA is 16 hours behind Sydney, NSW, Australia

3:33 am Wednesday, in Helena, Montana, USA is
7:33 pm Wednesday, in Sydney, NSW, Australia

Helena and Sydney time difference changes (based on dates DST begins and ends)
DateTime difference
10 March 2019 to 06 October 201916:0 hours
06 October 2019 to 03 November 201917:0 hours
03 November 2019 to 05 April 202018:0 hours
Helena Sydney Time Converter   

Time difference between Helena Montana and Sydney Australia is 16:0 hours

Both Helena and Sydney observe DST.
Helena - Sydney time difference changes according to the date DST begins and ends in these two cities.